* [PATCH net-next 1/6] net: atm: remove support for Fujitsu FireStream ATM devices
[not found] <20220426175436.417283-1-kuba@kernel.org>
@ 2022-04-26 17:54 ` Jakub Kicinski
2022-04-26 17:54 ` [PATCH net-next 3/6] net: atm: remove support for ZeitNet ZN122x " Jakub Kicinski
1 sibling, 0 replies; 7+ messages in thread
From: Jakub Kicinski @ 2022-04-26 17:54 UTC (permalink / raw)
To: davem, pabeni
Cc: netdev, Jakub Kicinski, Thomas Gleixner, Chas Williams,
linux-atm-general, Thomas Bogendoerfer, linux-mips, arnd
This driver received nothing but automated fixes (mostly spelling
and compiler warnings) since git era begun. Since it's using
virt_to_bus it's unlikely to be used on any modern platform.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Chas Williams <3chas3@gmail.com>
CC: linux-atm-general@lists.sourceforge.net
CC: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
CC: linux-mips@vger.kernel.org
CC: arnd@arndb.de
---
arch/mips/configs/gpr_defconfig | 1 -
arch/mips/configs/mtx1_defconfig | 1 -
drivers/atm/Kconfig | 10 -
drivers/atm/Makefile | 1 -
drivers/atm/firestream.c | 2057 ------------------------------
drivers/atm/firestream.h | 502 --------
6 files changed, 2572 deletions(-)
delete mode 100644 drivers/atm/firestream.c
delete mode 100644 drivers/atm/firestream.h
diff --git a/arch/mips/configs/gpr_defconfig b/arch/mips/configs/gpr_defconfig
index b0489437621a..605e778dff74 100644
--- a/arch/mips/configs/gpr_defconfig
+++ b/arch/mips/configs/gpr_defconfig
@@ -178,7 +178,6 @@ CONFIG_NETCONSOLE=m
CONFIG_ATM_TCP=m
CONFIG_ATM_LANAI=m
CONFIG_ATM_ENI=m
-CONFIG_ATM_FIRESTREAM=m
CONFIG_ATM_ZATM=m
CONFIG_ATM_NICSTAR=m
CONFIG_ATM_IDT77252=m
diff --git a/arch/mips/configs/mtx1_defconfig b/arch/mips/configs/mtx1_defconfig
index c98099f0b354..de95e7fe5a77 100644
--- a/arch/mips/configs/mtx1_defconfig
+++ b/arch/mips/configs/mtx1_defconfig
@@ -255,7 +255,6 @@ CONFIG_ARCNET_COM20020_CS=m
CONFIG_ATM_TCP=m
CONFIG_ATM_LANAI=m
CONFIG_ATM_ENI=m
-CONFIG_ATM_FIRESTREAM=m
CONFIG_ATM_ZATM=m
CONFIG_ATM_NICSTAR=m
CONFIG_ATM_IDT77252=m
diff --git a/drivers/atm/Kconfig b/drivers/atm/Kconfig
index 7be08e24955c..360c98ad29eb 100644
--- a/drivers/atm/Kconfig
+++ b/drivers/atm/Kconfig
@@ -146,16 +146,6 @@ config ATM_ENI_BURST_RX_2W
try this if you have disabled 4W and 8W bursts. Enabling 2W if 4W or
8W are also set may or may not improve throughput.
-config ATM_FIRESTREAM
- tristate "Fujitsu FireStream (FS50/FS155) "
- depends on PCI && VIRT_TO_BUS
- help
- Driver for the Fujitsu FireStream 155 (MB86697) and
- FireStream 50 (MB86695) ATM PCI chips.
-
- To compile this driver as a module, choose M here: the module will
- be called firestream.
-
config ATM_ZATM
tristate "ZeitNet ZN1221/ZN1225"
depends on PCI && VIRT_TO_BUS
diff --git a/drivers/atm/Makefile b/drivers/atm/Makefile
index 99ecbc280643..7d38fdaddd09 100644
--- a/drivers/atm/Makefile
+++ b/drivers/atm/Makefile
@@ -26,7 +26,6 @@ endif
obj-$(CONFIG_ATM_DUMMY) += adummy.o
obj-$(CONFIG_ATM_TCP) += atmtcp.o
-obj-$(CONFIG_ATM_FIRESTREAM) += firestream.o
obj-$(CONFIG_ATM_LANAI) += lanai.o
obj-$(CONFIG_ATM_HE) += he.o
diff --git a/drivers/atm/firestream.c b/drivers/atm/firestream.c
deleted file mode 100644
index 4f67404fe64c..000000000000
--- a/drivers/atm/firestream.c
+++ /dev/null
@@ -1,2057 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-/* drivers/atm/firestream.c - FireStream 155 (MB86697) and
- * FireStream 50 (MB86695) device driver
- */
-
-/* Written & (C) 2000 by R.E.Wolff@BitWizard.nl
- * Copied snippets from zatm.c by Werner Almesberger, EPFL LRC/ICA
- * and ambassador.c Copyright (C) 1995-1999 Madge Networks Ltd
- */
-
-/*
-*/
-
-
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/pci.h>
-#include <linux/poison.h>
-#include <linux/errno.h>
-#include <linux/atm.h>
-#include <linux/atmdev.h>
-#include <linux/sonet.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include <linux/delay.h>
-#include <linux/ioport.h> /* for request_region */
-#include <linux/uio.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/capability.h>
-#include <linux/bitops.h>
-#include <linux/slab.h>
-#include <asm/byteorder.h>
-#include <asm/string.h>
-#include <asm/io.h>
-#include <linux/atomic.h>
-#include <linux/uaccess.h>
-#include <linux/wait.h>
-
-#include "firestream.h"
-
-static int loopback = 0;
-static int num=0x5a;
-
-/* According to measurements (but they look suspicious to me!) done in
- * '97, 37% of the packets are one cell in size. So it pays to have
- * buffers allocated at that size. A large jump in percentage of
- * packets occurs at packets around 536 bytes in length. So it also
- * pays to have those pre-allocated. Unfortunately, we can't fully
- * take advantage of this as the majority of the packets is likely to
- * be TCP/IP (As where obviously the measurement comes from) There the
- * link would be opened with say a 1500 byte MTU, and we can't handle
- * smaller buffers more efficiently than the larger ones. -- REW
- */
-
-/* Due to the way Linux memory management works, specifying "576" as
- * an allocation size here isn't going to help. They are allocated
- * from 1024-byte regions anyway. With the size of the sk_buffs (quite
- * large), it doesn't pay to allocate the smallest size (64) -- REW */
-
-/* This is all guesswork. Hard numbers to back this up or disprove this,
- * are appreciated. -- REW */
-
-/* The last entry should be about 64k. However, the "buffer size" is
- * passed to the chip in a 16 bit field. I don't know how "65536"
- * would be interpreted. -- REW */
-
-#define NP FS_NR_FREE_POOLS
-static int rx_buf_sizes[NP] = {128, 256, 512, 1024, 2048, 4096, 16384, 65520};
-/* log2: 7 8 9 10 11 12 14 16 */
-
-#if 0
-static int rx_pool_sizes[NP] = {1024, 1024, 512, 256, 128, 64, 32, 32};
-#else
-/* debug */
-static int rx_pool_sizes[NP] = {128, 128, 128, 64, 64, 64, 32, 32};
-#endif
-/* log2: 10 10 9 8 7 6 5 5 */
-/* sumlog2: 17 18 18 18 18 18 19 21 */
-/* mem allocated: 128k 256k 256k 256k 256k 256k 512k 2M */
-/* tot mem: almost 4M */
-
-/* NP is shorter, so that it fits on a single line. */
-#undef NP
-
-
-/* Small hardware gotcha:
-
- The FS50 CAM (VP/VC match registers) always take the lowest channel
- number that matches. This is not a problem.
-
- However, they also ignore whether the channel is enabled or
- not. This means that if you allocate channel 0 to 1.2 and then
- channel 1 to 0.0, then disabeling channel 0 and writing 0 to the
- match channel for channel 0 will "steal" the traffic from channel
- 1, even if you correctly disable channel 0.
-
- Workaround:
-
- - When disabling channels, write an invalid VP/VC value to the
- match register. (We use 0xffffffff, which in the worst case
- matches VP/VC = <maxVP>/<maxVC>, but I expect it not to match
- anything as some "when not in use, program to 0" bits are now
- programmed to 1...)
-
- - Don't initialize the match registers to 0, as 0.0 is a valid
- channel.
-*/
-
-
-/* Optimization hints and tips.
-
- The FireStream chips are very capable of reducing the amount of
- "interrupt-traffic" for the CPU. This driver requests an interrupt on EVERY
- action. You could try to minimize this a bit.
-
- Besides that, the userspace->kernel copy and the PCI bus are the
- performance limiting issues for this driver.
-
- You could queue up a bunch of outgoing packets without telling the
- FireStream. I'm not sure that's going to win you much though. The
- Linux layer won't tell us in advance when it's not going to give us
- any more packets in a while. So this is tricky to implement right without
- introducing extra delays.
-
- -- REW
- */
-
-
-
-
-/* The strings that define what the RX queue entry is all about. */
-/* Fujitsu: Please tell me which ones can have a pointer to a
- freepool descriptor! */
-static char *res_strings[] = {
- "RX OK: streaming not EOP",
- "RX OK: streaming EOP",
- "RX OK: Single buffer packet",
- "RX OK: packet mode",
- "RX OK: F4 OAM (end to end)",
- "RX OK: F4 OAM (Segment)",
- "RX OK: F5 OAM (end to end)",
- "RX OK: F5 OAM (Segment)",
- "RX OK: RM cell",
- "RX OK: TRANSP cell",
- "RX OK: TRANSPC cell",
- "Unmatched cell",
- "reserved 12",
- "reserved 13",
- "reserved 14",
- "Unrecognized cell",
- "reserved 16",
- "reassembly abort: AAL5 abort",
- "packet purged",
- "packet ageing timeout",
- "channel ageing timeout",
- "calculated length error",
- "programmed length limit error",
- "aal5 crc32 error",
- "oam transp or transpc crc10 error",
- "reserved 25",
- "reserved 26",
- "reserved 27",
- "reserved 28",
- "reserved 29",
- "reserved 30", /* FIXME: The strings between 30-40 might be wrong. */
- "reassembly abort: no buffers",
- "receive buffer overflow",
- "change in GFC",
- "receive buffer full",
- "low priority discard - no receive descriptor",
- "low priority discard - missing end of packet",
- "reserved 37",
- "reserved 38",
- "reserved 39",
- "reserved 40",
- "reserved 41",
- "reserved 42",
- "reserved 43",
- "reserved 44",
- "reserved 45",
- "reserved 46",
- "reserved 47",
- "reserved 48",
- "reserved 49",
- "reserved 50",
- "reserved 51",
- "reserved 52",
- "reserved 53",
- "reserved 54",
- "reserved 55",
- "reserved 56",
- "reserved 57",
- "reserved 58",
- "reserved 59",
- "reserved 60",
- "reserved 61",
- "reserved 62",
- "reserved 63",
-};
-
-static char *irq_bitname[] = {
- "LPCO",
- "DPCO",
- "RBRQ0_W",
- "RBRQ1_W",
- "RBRQ2_W",
- "RBRQ3_W",
- "RBRQ0_NF",
- "RBRQ1_NF",
- "RBRQ2_NF",
- "RBRQ3_NF",
- "BFP_SC",
- "INIT",
- "INIT_ERR",
- "USCEO",
- "UPEC0",
- "VPFCO",
- "CRCCO",
- "HECO",
- "TBRQ_W",
- "TBRQ_NF",
- "CTPQ_E",
- "GFC_C0",
- "PCI_FTL",
- "CSQ_W",
- "CSQ_NF",
- "EXT_INT",
- "RXDMA_S"
-};
-
-
-#define PHY_EOF -1
-#define PHY_CLEARALL -2
-
-struct reginit_item {
- int reg, val;
-};
-
-
-static struct reginit_item PHY_NTC_INIT[] = {
- { PHY_CLEARALL, 0x40 },
- { 0x12, 0x0001 },
- { 0x13, 0x7605 },
- { 0x1A, 0x0001 },
- { 0x1B, 0x0005 },
- { 0x38, 0x0003 },
- { 0x39, 0x0006 }, /* changed here to make loopback */
- { 0x01, 0x5262 },
- { 0x15, 0x0213 },
- { 0x00, 0x0003 },
- { PHY_EOF, 0}, /* -1 signals end of list */
-};
-
-
-/* Safetyfeature: If the card interrupts more than this number of times
- in a jiffy (1/100th of a second) then we just disable the interrupt and
- print a message. This prevents the system from hanging.
-
- 150000 packets per second is close to the limit a PC is going to have
- anyway. We therefore have to disable this for production. -- REW */
-#undef IRQ_RATE_LIMIT // 100
-
-/* Interrupts work now. Unlike serial cards, ATM cards don't work all
- that great without interrupts. -- REW */
-#undef FS_POLL_FREQ // 100
-
-/*
- This driver can spew a whole lot of debugging output at you. If you
- need maximum performance, you should disable the DEBUG define. To
- aid in debugging in the field, I'm leaving the compile-time debug
- features enabled, and disable them "runtime". That allows me to
- instruct people with problems to enable debugging without requiring
- them to recompile... -- REW
-*/
-#define DEBUG
-
-#ifdef DEBUG
-#define fs_dprintk(f, str...) if (fs_debug & f) printk (str)
-#else
-#define fs_dprintk(f, str...) /* nothing */
-#endif
-
-
-static int fs_keystream = 0;
-
-#ifdef DEBUG
-/* I didn't forget to set this to zero before shipping. Hit me with a stick
- if you get this with the debug default not set to zero again. -- REW */
-static int fs_debug = 0;
-#else
-#define fs_debug 0
-#endif
-
-#ifdef MODULE
-#ifdef DEBUG
-module_param(fs_debug, int, 0644);
-#endif
-module_param(loopback, int, 0);
-module_param(num, int, 0);
-module_param(fs_keystream, int, 0);
-/* XXX Add rx_buf_sizes, and rx_pool_sizes As per request Amar. -- REW */
-#endif
-
-
-#define FS_DEBUG_FLOW 0x00000001
-#define FS_DEBUG_OPEN 0x00000002
-#define FS_DEBUG_QUEUE 0x00000004
-#define FS_DEBUG_IRQ 0x00000008
-#define FS_DEBUG_INIT 0x00000010
-#define FS_DEBUG_SEND 0x00000020
-#define FS_DEBUG_PHY 0x00000040
-#define FS_DEBUG_CLEANUP 0x00000080
-#define FS_DEBUG_QOS 0x00000100
-#define FS_DEBUG_TXQ 0x00000200
-#define FS_DEBUG_ALLOC 0x00000400
-#define FS_DEBUG_TXMEM 0x00000800
-#define FS_DEBUG_QSIZE 0x00001000
-
-
-#define func_enter() fs_dprintk(FS_DEBUG_FLOW, "fs: enter %s\n", __func__)
-#define func_exit() fs_dprintk(FS_DEBUG_FLOW, "fs: exit %s\n", __func__)
-
-
-static struct fs_dev *fs_boards = NULL;
-
-#ifdef DEBUG
-
-static void my_hd (void *addr, int len)
-{
- int j, ch;
- unsigned char *ptr = addr;
-
- while (len > 0) {
- printk ("%p ", ptr);
- for (j=0;j < ((len < 16)?len:16);j++) {
- printk ("%02x %s", ptr[j], (j==7)?" ":"");
- }
- for ( ;j < 16;j++) {
- printk (" %s", (j==7)?" ":"");
- }
- for (j=0;j < ((len < 16)?len:16);j++) {
- ch = ptr[j];
- printk ("%c", (ch < 0x20)?'.':((ch > 0x7f)?'.':ch));
- }
- printk ("\n");
- ptr += 16;
- len -= 16;
- }
-}
-#else /* DEBUG */
-static void my_hd (void *addr, int len){}
-#endif /* DEBUG */
-
-/********** free an skb (as per ATM device driver documentation) **********/
-
-/* Hmm. If this is ATM specific, why isn't there an ATM routine for this?
- * I copied it over from the ambassador driver. -- REW */
-
-static inline void fs_kfree_skb (struct sk_buff * skb)
-{
- if (ATM_SKB(skb)->vcc->pop)
- ATM_SKB(skb)->vcc->pop (ATM_SKB(skb)->vcc, skb);
- else
- dev_kfree_skb_any (skb);
-}
-
-
-
-
-/* It seems the ATM forum recommends this horribly complicated 16bit
- * floating point format. Turns out the Ambassador uses the exact same
- * encoding. I just copied it over. If Mitch agrees, I'll move it over
- * to the atm_misc file or something like that. (and remove it from
- * here and the ambassador driver) -- REW
- */
-
-/* The good thing about this format is that it is monotonic. So,
- a conversion routine need not be very complicated. To be able to
- round "nearest" we need to take along a few extra bits. Lets
- put these after 16 bits, so that we can just return the top 16
- bits of the 32bit number as the result:
-
- int mr (unsigned int rate, int r)
- {
- int e = 16+9;
- static int round[4]={0, 0, 0xffff, 0x8000};
- if (!rate) return 0;
- while (rate & 0xfc000000) {
- rate >>= 1;
- e++;
- }
- while (! (rate & 0xfe000000)) {
- rate <<= 1;
- e--;
- }
-
-// Now the mantissa is in positions bit 16-25. Excepf for the "hidden 1" that's in bit 26.
- rate &= ~0x02000000;
-// Next add in the exponent
- rate |= e << (16+9);
-// And perform the rounding:
- return (rate + round[r]) >> 16;
- }
-
- 14 lines-of-code. Compare that with the 120 that the Ambassador
- guys needed. (would be 8 lines shorter if I'd try to really reduce
- the number of lines:
-
- int mr (unsigned int rate, int r)
- {
- int e = 16+9;
- static int round[4]={0, 0, 0xffff, 0x8000};
- if (!rate) return 0;
- for (; rate & 0xfc000000 ;rate >>= 1, e++);
- for (;!(rate & 0xfe000000);rate <<= 1, e--);
- return ((rate & ~0x02000000) | (e << (16+9)) + round[r]) >> 16;
- }
-
- Exercise for the reader: Remove one more line-of-code, without
- cheating. (Just joining two lines is cheating). (I know it's
- possible, don't think you've beat me if you found it... If you
- manage to lose two lines or more, keep me updated! ;-)
-
- -- REW */
-
-
-#define ROUND_UP 1
-#define ROUND_DOWN 2
-#define ROUND_NEAREST 3
-/********** make rate (not quite as much fun as Horizon) **********/
-
-static int make_rate(unsigned int rate, int r,
- u16 *bits, unsigned int *actual)
-{
- unsigned char exp = -1; /* hush gcc */
- unsigned int man = -1; /* hush gcc */
-
- fs_dprintk (FS_DEBUG_QOS, "make_rate %u", rate);
-
- /* rates in cells per second, ITU format (nasty 16-bit floating-point)
- given 5-bit e and 9-bit m:
- rate = EITHER (1+m/2^9)*2^e OR 0
- bits = EITHER 1<<14 | e<<9 | m OR 0
- (bit 15 is "reserved", bit 14 "non-zero")
- smallest rate is 0 (special representation)
- largest rate is (1+511/512)*2^31 = 4290772992 (< 2^32-1)
- smallest non-zero rate is (1+0/512)*2^0 = 1 (> 0)
- simple algorithm:
- find position of top bit, this gives e
- remove top bit and shift (rounding if feeling clever) by 9-e
- */
- /* Ambassador ucode bug: please don't set bit 14! so 0 rate not
- representable. // This should move into the ambassador driver
- when properly merged. -- REW */
-
- if (rate > 0xffc00000U) {
- /* larger than largest representable rate */
-
- if (r == ROUND_UP) {
- return -EINVAL;
- } else {
- exp = 31;
- man = 511;
- }
-
- } else if (rate) {
- /* representable rate */
-
- exp = 31;
- man = rate;
-
- /* invariant: rate = man*2^(exp-31) */
- while (!(man & (1<<31))) {
- exp = exp - 1;
- man = man<<1;
- }
-
- /* man has top bit set
- rate = (2^31+(man-2^31))*2^(exp-31)
- rate = (1+(man-2^31)/2^31)*2^exp
- */
- man = man<<1;
- man &= 0xffffffffU; /* a nop on 32-bit systems */
- /* rate = (1+man/2^32)*2^exp
-
- exp is in the range 0 to 31, man is in the range 0 to 2^32-1
- time to lose significance... we want m in the range 0 to 2^9-1
- rounding presents a minor problem... we first decide which way
- we are rounding (based on given rounding direction and possibly
- the bits of the mantissa that are to be discarded).
- */
-
- switch (r) {
- case ROUND_DOWN: {
- /* just truncate */
- man = man>>(32-9);
- break;
- }
- case ROUND_UP: {
- /* check all bits that we are discarding */
- if (man & (~0U>>9)) {
- man = (man>>(32-9)) + 1;
- if (man == (1<<9)) {
- /* no need to check for round up outside of range */
- man = 0;
- exp += 1;
- }
- } else {
- man = (man>>(32-9));
- }
- break;
- }
- case ROUND_NEAREST: {
- /* check msb that we are discarding */
- if (man & (1<<(32-9-1))) {
- man = (man>>(32-9)) + 1;
- if (man == (1<<9)) {
- /* no need to check for round up outside of range */
- man = 0;
- exp += 1;
- }
- } else {
- man = (man>>(32-9));
- }
- break;
- }
- }
-
- } else {
- /* zero rate - not representable */
-
- if (r == ROUND_DOWN) {
- return -EINVAL;
- } else {
- exp = 0;
- man = 0;
- }
- }
-
- fs_dprintk (FS_DEBUG_QOS, "rate: man=%u, exp=%hu", man, exp);
-
- if (bits)
- *bits = /* (1<<14) | */ (exp<<9) | man;
-
- if (actual)
- *actual = (exp >= 9)
- ? (1 << exp) + (man << (exp-9))
- : (1 << exp) + ((man + (1<<(9-exp-1))) >> (9-exp));
-
- return 0;
-}
-
-
-
-
-/* FireStream access routines */
-/* For DEEP-DOWN debugging these can be rigged to intercept accesses to
- certain registers or to just log all accesses. */
-
-static inline void write_fs (struct fs_dev *dev, int offset, u32 val)
-{
- writel (val, dev->base + offset);
-}
-
-
-static inline u32 read_fs (struct fs_dev *dev, int offset)
-{
- return readl (dev->base + offset);
-}
-
-
-
-static inline struct FS_QENTRY *get_qentry (struct fs_dev *dev, struct queue *q)
-{
- return bus_to_virt (read_fs (dev, Q_WP(q->offset)) & Q_ADDR_MASK);
-}
-
-
-static void submit_qentry (struct fs_dev *dev, struct queue *q, struct FS_QENTRY *qe)
-{
- u32 wp;
- struct FS_QENTRY *cqe;
-
- /* XXX Sanity check: the write pointer can be checked to be
- still the same as the value passed as qe... -- REW */
- /* udelay (5); */
- while ((wp = read_fs (dev, Q_WP (q->offset))) & Q_FULL) {
- fs_dprintk (FS_DEBUG_TXQ, "Found queue at %x full. Waiting.\n",
- q->offset);
- schedule ();
- }
-
- wp &= ~0xf;
- cqe = bus_to_virt (wp);
- if (qe != cqe) {
- fs_dprintk (FS_DEBUG_TXQ, "q mismatch! %p %p\n", qe, cqe);
- }
-
- write_fs (dev, Q_WP(q->offset), Q_INCWRAP);
-
- {
- static int c;
- if (!(c++ % 100))
- {
- int rp, wp;
- rp = read_fs (dev, Q_RP(q->offset));
- wp = read_fs (dev, Q_WP(q->offset));
- fs_dprintk (FS_DEBUG_TXQ, "q at %d: %x-%x: %x entries.\n",
- q->offset, rp, wp, wp-rp);
- }
- }
-}
-
-#ifdef DEBUG_EXTRA
-static struct FS_QENTRY pq[60];
-static int qp;
-
-static struct FS_BPENTRY dq[60];
-static int qd;
-static void *da[60];
-#endif
-
-static void submit_queue (struct fs_dev *dev, struct queue *q,
- u32 cmd, u32 p1, u32 p2, u32 p3)
-{
- struct FS_QENTRY *qe;
-
- qe = get_qentry (dev, q);
- qe->cmd = cmd;
- qe->p0 = p1;
- qe->p1 = p2;
- qe->p2 = p3;
- submit_qentry (dev, q, qe);
-
-#ifdef DEBUG_EXTRA
- pq[qp].cmd = cmd;
- pq[qp].p0 = p1;
- pq[qp].p1 = p2;
- pq[qp].p2 = p3;
- qp++;
- if (qp >= 60) qp = 0;
-#endif
-}
-
-/* Test the "other" way one day... -- REW */
-#if 1
-#define submit_command submit_queue
-#else
-
-static void submit_command (struct fs_dev *dev, struct queue *q,
- u32 cmd, u32 p1, u32 p2, u32 p3)
-{
- write_fs (dev, CMDR0, cmd);
- write_fs (dev, CMDR1, p1);
- write_fs (dev, CMDR2, p2);
- write_fs (dev, CMDR3, p3);
-}
-#endif
-
-
-
-static void process_return_queue (struct fs_dev *dev, struct queue *q)
-{
- long rq;
- struct FS_QENTRY *qe;
- void *tc;
-
- while (!((rq = read_fs (dev, Q_RP(q->offset))) & Q_EMPTY)) {
- fs_dprintk (FS_DEBUG_QUEUE, "reaping return queue entry at %lx\n", rq);
- qe = bus_to_virt (rq);
-
- fs_dprintk (FS_DEBUG_QUEUE, "queue entry: %08x %08x %08x %08x. (%d)\n",
- qe->cmd, qe->p0, qe->p1, qe->p2, STATUS_CODE (qe));
-
- switch (STATUS_CODE (qe)) {
- case 5:
- tc = bus_to_virt (qe->p0);
- fs_dprintk (FS_DEBUG_ALLOC, "Free tc: %p\n", tc);
- kfree (tc);
- break;
- }
-
- write_fs (dev, Q_RP(q->offset), Q_INCWRAP);
- }
-}
-
-
-static void process_txdone_queue (struct fs_dev *dev, struct queue *q)
-{
- long rq;
- long tmp;
- struct FS_QENTRY *qe;
- struct sk_buff *skb;
- struct FS_BPENTRY *td;
-
- while (!((rq = read_fs (dev, Q_RP(q->offset))) & Q_EMPTY)) {
- fs_dprintk (FS_DEBUG_QUEUE, "reaping txdone entry at %lx\n", rq);
- qe = bus_to_virt (rq);
-
- fs_dprintk (FS_DEBUG_QUEUE, "queue entry: %08x %08x %08x %08x: %d\n",
- qe->cmd, qe->p0, qe->p1, qe->p2, STATUS_CODE (qe));
-
- if (STATUS_CODE (qe) != 2)
- fs_dprintk (FS_DEBUG_TXMEM, "queue entry: %08x %08x %08x %08x: %d\n",
- qe->cmd, qe->p0, qe->p1, qe->p2, STATUS_CODE (qe));
-
-
- switch (STATUS_CODE (qe)) {
- case 0x01: /* This is for AAL0 where we put the chip in streaming mode */
- fallthrough;
- case 0x02:
- /* Process a real txdone entry. */
- tmp = qe->p0;
- if (tmp & 0x0f)
- printk (KERN_WARNING "td not aligned: %ld\n", tmp);
- tmp &= ~0x0f;
- td = bus_to_virt (tmp);
-
- fs_dprintk (FS_DEBUG_QUEUE, "Pool entry: %08x %08x %08x %08x %p.\n",
- td->flags, td->next, td->bsa, td->aal_bufsize, td->skb );
-
- skb = td->skb;
- if (skb == FS_VCC (ATM_SKB(skb)->vcc)->last_skb) {
- FS_VCC (ATM_SKB(skb)->vcc)->last_skb = NULL;
- wake_up_interruptible (& FS_VCC (ATM_SKB(skb)->vcc)->close_wait);
- }
- td->dev->ntxpckts--;
-
- {
- static int c=0;
-
- if (!(c++ % 100)) {
- fs_dprintk (FS_DEBUG_QSIZE, "[%d]", td->dev->ntxpckts);
- }
- }
-
- atomic_inc(&ATM_SKB(skb)->vcc->stats->tx);
-
- fs_dprintk (FS_DEBUG_TXMEM, "i");
- fs_dprintk (FS_DEBUG_ALLOC, "Free t-skb: %p\n", skb);
- fs_kfree_skb (skb);
-
- fs_dprintk (FS_DEBUG_ALLOC, "Free trans-d: %p\n", td);
- memset (td, ATM_POISON_FREE, sizeof(struct FS_BPENTRY));
- kfree (td);
- break;
- default:
- /* Here we get the tx purge inhibit command ... */
- /* Action, I believe, is "don't do anything". -- REW */
- ;
- }
-
- write_fs (dev, Q_RP(q->offset), Q_INCWRAP);
- }
-}
-
-
-static void process_incoming (struct fs_dev *dev, struct queue *q)
-{
- long rq;
- struct FS_QENTRY *qe;
- struct FS_BPENTRY *pe;
- struct sk_buff *skb;
- unsigned int channo;
- struct atm_vcc *atm_vcc;
-
- while (!((rq = read_fs (dev, Q_RP(q->offset))) & Q_EMPTY)) {
- fs_dprintk (FS_DEBUG_QUEUE, "reaping incoming queue entry at %lx\n", rq);
- qe = bus_to_virt (rq);
-
- fs_dprintk (FS_DEBUG_QUEUE, "queue entry: %08x %08x %08x %08x. ",
- qe->cmd, qe->p0, qe->p1, qe->p2);
-
- fs_dprintk (FS_DEBUG_QUEUE, "-> %x: %s\n",
- STATUS_CODE (qe),
- res_strings[STATUS_CODE(qe)]);
-
- pe = bus_to_virt (qe->p0);
- fs_dprintk (FS_DEBUG_QUEUE, "Pool entry: %08x %08x %08x %08x %p %p.\n",
- pe->flags, pe->next, pe->bsa, pe->aal_bufsize,
- pe->skb, pe->fp);
-
- channo = qe->cmd & 0xffff;
-
- if (channo < dev->nchannels)
- atm_vcc = dev->atm_vccs[channo];
- else
- atm_vcc = NULL;
-
- /* Single buffer packet */
- switch (STATUS_CODE (qe)) {
- case 0x1:
- /* Fall through for streaming mode */
- fallthrough;
- case 0x2:/* Packet received OK.... */
- if (atm_vcc) {
- skb = pe->skb;
- pe->fp->n--;
-#if 0
- fs_dprintk (FS_DEBUG_QUEUE, "Got skb: %p\n", skb);
- if (FS_DEBUG_QUEUE & fs_debug) my_hd (bus_to_virt (pe->bsa), 0x20);
-#endif
- skb_put (skb, qe->p1 & 0xffff);
- ATM_SKB(skb)->vcc = atm_vcc;
- atomic_inc(&atm_vcc->stats->rx);
- __net_timestamp(skb);
- fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p (pushed)\n", skb);
- atm_vcc->push (atm_vcc, skb);
- fs_dprintk (FS_DEBUG_ALLOC, "Free rec-d: %p\n", pe);
- kfree (pe);
- } else {
- printk (KERN_ERR "Got a receive on a non-open channel %d.\n", channo);
- }
- break;
- case 0x17:/* AAL 5 CRC32 error. IFF the length field is nonzero, a buffer
- has been consumed and needs to be processed. -- REW */
- if (qe->p1 & 0xffff) {
- pe = bus_to_virt (qe->p0);
- pe->fp->n--;
- fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p\n", pe->skb);
- dev_kfree_skb_any (pe->skb);
- fs_dprintk (FS_DEBUG_ALLOC, "Free rec-d: %p\n", pe);
- kfree (pe);
- }
- if (atm_vcc)
- atomic_inc(&atm_vcc->stats->rx_drop);
- break;
- case 0x1f: /* Reassembly abort: no buffers. */
- /* Silently increment error counter. */
- if (atm_vcc)
- atomic_inc(&atm_vcc->stats->rx_drop);
- break;
- default: /* Hmm. Haven't written the code to handle the others yet... -- REW */
- printk (KERN_WARNING "Don't know what to do with RX status %x: %s.\n",
- STATUS_CODE(qe), res_strings[STATUS_CODE (qe)]);
- }
- write_fs (dev, Q_RP(q->offset), Q_INCWRAP);
- }
-}
-
-
-
-#define DO_DIRECTION(tp) ((tp)->traffic_class != ATM_NONE)
-
-static int fs_open(struct atm_vcc *atm_vcc)
-{
- struct fs_dev *dev;
- struct fs_vcc *vcc;
- struct fs_transmit_config *tc;
- struct atm_trafprm * txtp;
- struct atm_trafprm * rxtp;
- /* struct fs_receive_config *rc;*/
- /* struct FS_QENTRY *qe; */
- int error;
- int bfp;
- int to;
- unsigned short tmc0;
- short vpi = atm_vcc->vpi;
- int vci = atm_vcc->vci;
-
- func_enter ();
-
- dev = FS_DEV(atm_vcc->dev);
- fs_dprintk (FS_DEBUG_OPEN, "fs: open on dev: %p, vcc at %p\n",
- dev, atm_vcc);
-
- if (vci != ATM_VPI_UNSPEC && vpi != ATM_VCI_UNSPEC)
- set_bit(ATM_VF_ADDR, &atm_vcc->flags);
-
- if ((atm_vcc->qos.aal != ATM_AAL5) &&
- (atm_vcc->qos.aal != ATM_AAL2))
- return -EINVAL; /* XXX AAL0 */
-
- fs_dprintk (FS_DEBUG_OPEN, "fs: (itf %d): open %d.%d\n",
- atm_vcc->dev->number, atm_vcc->vpi, atm_vcc->vci);
-
- /* XXX handle qos parameters (rate limiting) ? */
-
- vcc = kmalloc(sizeof(struct fs_vcc), GFP_KERNEL);
- fs_dprintk (FS_DEBUG_ALLOC, "Alloc VCC: %p(%zd)\n", vcc, sizeof(struct fs_vcc));
- if (!vcc) {
- clear_bit(ATM_VF_ADDR, &atm_vcc->flags);
- return -ENOMEM;
- }
-
- atm_vcc->dev_data = vcc;
- vcc->last_skb = NULL;
-
- init_waitqueue_head (&vcc->close_wait);
-
- txtp = &atm_vcc->qos.txtp;
- rxtp = &atm_vcc->qos.rxtp;
-
- if (!test_bit(ATM_VF_PARTIAL, &atm_vcc->flags)) {
- if (IS_FS50(dev)) {
- /* Increment the channel numer: take a free one next time. */
- for (to=33;to;to--, dev->channo++) {
- /* We only have 32 channels */
- if (dev->channo >= 32)
- dev->channo = 0;
- /* If we need to do RX, AND the RX is inuse, try the next */
- if (DO_DIRECTION(rxtp) && dev->atm_vccs[dev->channo])
- continue;
- /* If we need to do TX, AND the TX is inuse, try the next */
- if (DO_DIRECTION(txtp) && test_bit (dev->channo, dev->tx_inuse))
- continue;
- /* Ok, both are free! (or not needed) */
- break;
- }
- if (!to) {
- printk ("No more free channels for FS50..\n");
- kfree(vcc);
- return -EBUSY;
- }
- vcc->channo = dev->channo;
- dev->channo &= dev->channel_mask;
-
- } else {
- vcc->channo = (vpi << FS155_VCI_BITS) | (vci);
- if (((DO_DIRECTION(rxtp) && dev->atm_vccs[vcc->channo])) ||
- ( DO_DIRECTION(txtp) && test_bit (vcc->channo, dev->tx_inuse))) {
- printk ("Channel is in use for FS155.\n");
- kfree(vcc);
- return -EBUSY;
- }
- }
- fs_dprintk (FS_DEBUG_OPEN, "OK. Allocated channel %x(%d).\n",
- vcc->channo, vcc->channo);
- }
-
- if (DO_DIRECTION (txtp)) {
- tc = kmalloc (sizeof (struct fs_transmit_config), GFP_KERNEL);
- fs_dprintk (FS_DEBUG_ALLOC, "Alloc tc: %p(%zd)\n",
- tc, sizeof (struct fs_transmit_config));
- if (!tc) {
- fs_dprintk (FS_DEBUG_OPEN, "fs: can't alloc transmit_config.\n");
- kfree(vcc);
- return -ENOMEM;
- }
-
- /* Allocate the "open" entry from the high priority txq. This makes
- it most likely that the chip will notice it. It also prevents us
- from having to wait for completion. On the other hand, we may
- need to wait for completion anyway, to see if it completed
- successfully. */
-
- switch (atm_vcc->qos.aal) {
- case ATM_AAL2:
- case ATM_AAL0:
- tc->flags = 0
- | TC_FLAGS_TRANSPARENT_PAYLOAD
- | TC_FLAGS_PACKET
- | (1 << 28)
- | TC_FLAGS_TYPE_UBR /* XXX Change to VBR -- PVDL */
- | TC_FLAGS_CAL0;
- break;
- case ATM_AAL5:
- tc->flags = 0
- | TC_FLAGS_AAL5
- | TC_FLAGS_PACKET /* ??? */
- | TC_FLAGS_TYPE_CBR
- | TC_FLAGS_CAL0;
- break;
- default:
- printk ("Unknown aal: %d\n", atm_vcc->qos.aal);
- tc->flags = 0;
- }
- /* Docs are vague about this atm_hdr field. By the way, the FS
- * chip makes odd errors if lower bits are set.... -- REW */
- tc->atm_hdr = (vpi << 20) | (vci << 4);
- tmc0 = 0;
- {
- int pcr = atm_pcr_goal (txtp);
-
- fs_dprintk (FS_DEBUG_OPEN, "pcr = %d.\n", pcr);
-
- /* XXX Hmm. officially we're only allowed to do this if rounding
- is round_down -- REW */
- if (IS_FS50(dev)) {
- if (pcr > 51840000/53/8) pcr = 51840000/53/8;
- } else {
- if (pcr > 155520000/53/8) pcr = 155520000/53/8;
- }
- if (!pcr) {
- /* no rate cap */
- tmc0 = IS_FS50(dev)?0x61BE:0x64c9; /* Just copied over the bits from Fujitsu -- REW */
- } else {
- int r;
- if (pcr < 0) {
- r = ROUND_DOWN;
- pcr = -pcr;
- } else {
- r = ROUND_UP;
- }
- error = make_rate (pcr, r, &tmc0, NULL);
- if (error) {
- kfree(tc);
- kfree(vcc);
- return error;
- }
- }
- fs_dprintk (FS_DEBUG_OPEN, "pcr = %d.\n", pcr);
- }
-
- tc->TMC[0] = tmc0 | 0x4000;
- tc->TMC[1] = 0; /* Unused */
- tc->TMC[2] = 0; /* Unused */
- tc->TMC[3] = 0; /* Unused */
-
- tc->spec = 0; /* UTOPIA address, UDF, HEC: Unused -> 0 */
- tc->rtag[0] = 0; /* What should I do with routing tags???
- -- Not used -- AS -- Thanks -- REW*/
- tc->rtag[1] = 0;
- tc->rtag[2] = 0;
-
- if (fs_debug & FS_DEBUG_OPEN) {
- fs_dprintk (FS_DEBUG_OPEN, "TX config record:\n");
- my_hd (tc, sizeof (*tc));
- }
-
- /* We now use the "submit_command" function to submit commands to
- the firestream. There is a define up near the definition of
- that routine that switches this routine between immediate write
- to the immediate command registers and queuing the commands in
- the HPTXQ for execution. This last technique might be more
- efficient if we know we're going to submit a whole lot of
- commands in one go, but this driver is not setup to be able to
- use such a construct. So it probably doen't matter much right
- now. -- REW */
-
- /* The command is IMMediate and INQueue. The parameters are out-of-line.. */
- submit_command (dev, &dev->hp_txq,
- QE_CMD_CONFIG_TX | QE_CMD_IMM_INQ | vcc->channo,
- virt_to_bus (tc), 0, 0);
-
- submit_command (dev, &dev->hp_txq,
- QE_CMD_TX_EN | QE_CMD_IMM_INQ | vcc->channo,
- 0, 0, 0);
- set_bit (vcc->channo, dev->tx_inuse);
- }
-
- if (DO_DIRECTION (rxtp)) {
- dev->atm_vccs[vcc->channo] = atm_vcc;
-
- for (bfp = 0;bfp < FS_NR_FREE_POOLS; bfp++)
- if (atm_vcc->qos.rxtp.max_sdu <= dev->rx_fp[bfp].bufsize) break;
- if (bfp >= FS_NR_FREE_POOLS) {
- fs_dprintk (FS_DEBUG_OPEN, "No free pool fits sdu: %d.\n",
- atm_vcc->qos.rxtp.max_sdu);
- /* XXX Cleanup? -- Would just calling fs_close work??? -- REW */
-
- /* XXX clear tx inuse. Close TX part? */
- dev->atm_vccs[vcc->channo] = NULL;
- kfree (vcc);
- return -EINVAL;
- }
-
- switch (atm_vcc->qos.aal) {
- case ATM_AAL0:
- case ATM_AAL2:
- submit_command (dev, &dev->hp_txq,
- QE_CMD_CONFIG_RX | QE_CMD_IMM_INQ | vcc->channo,
- RC_FLAGS_TRANSP |
- RC_FLAGS_BFPS_BFP * bfp |
- RC_FLAGS_RXBM_PSB, 0, 0);
- break;
- case ATM_AAL5:
- submit_command (dev, &dev->hp_txq,
- QE_CMD_CONFIG_RX | QE_CMD_IMM_INQ | vcc->channo,
- RC_FLAGS_AAL5 |
- RC_FLAGS_BFPS_BFP * bfp |
- RC_FLAGS_RXBM_PSB, 0, 0);
- break;
- }
- if (IS_FS50 (dev)) {
- submit_command (dev, &dev->hp_txq,
- QE_CMD_REG_WR | QE_CMD_IMM_INQ,
- 0x80 + vcc->channo,
- (vpi << 16) | vci, 0 ); /* XXX -- Use defines. */
- }
- submit_command (dev, &dev->hp_txq,
- QE_CMD_RX_EN | QE_CMD_IMM_INQ | vcc->channo,
- 0, 0, 0);
- }
-
- /* Indicate we're done! */
- set_bit(ATM_VF_READY, &atm_vcc->flags);
-
- func_exit ();
- return 0;
-}
-
-
-static void fs_close(struct atm_vcc *atm_vcc)
-{
- struct fs_dev *dev = FS_DEV (atm_vcc->dev);
- struct fs_vcc *vcc = FS_VCC (atm_vcc);
- struct atm_trafprm * txtp;
- struct atm_trafprm * rxtp;
-
- func_enter ();
-
- clear_bit(ATM_VF_READY, &atm_vcc->flags);
-
- fs_dprintk (FS_DEBUG_QSIZE, "--==**[%d]**==--", dev->ntxpckts);
- if (vcc->last_skb) {
- fs_dprintk (FS_DEBUG_QUEUE, "Waiting for skb %p to be sent.\n",
- vcc->last_skb);
- /* We're going to wait for the last packet to get sent on this VC. It would
- be impolite not to send them don't you think?
- XXX
- We don't know which packets didn't get sent. So if we get interrupted in
- this sleep_on, we'll lose any reference to these packets. Memory leak!
- On the other hand, it's awfully convenient that we can abort a "close" that
- is taking too long. Maybe just use non-interruptible sleep on? -- REW */
- wait_event_interruptible(vcc->close_wait, !vcc->last_skb);
- }
-
- txtp = &atm_vcc->qos.txtp;
- rxtp = &atm_vcc->qos.rxtp;
-
-
- /* See App note XXX (Unpublished as of now) for the reason for the
- removal of the "CMD_IMM_INQ" part of the TX_PURGE_INH... -- REW */
-
- if (DO_DIRECTION (txtp)) {
- submit_command (dev, &dev->hp_txq,
- QE_CMD_TX_PURGE_INH | /*QE_CMD_IMM_INQ|*/ vcc->channo, 0,0,0);
- clear_bit (vcc->channo, dev->tx_inuse);
- }
-
- if (DO_DIRECTION (rxtp)) {
- submit_command (dev, &dev->hp_txq,
- QE_CMD_RX_PURGE_INH | QE_CMD_IMM_INQ | vcc->channo, 0,0,0);
- dev->atm_vccs [vcc->channo] = NULL;
-
- /* This means that this is configured as a receive channel */
- if (IS_FS50 (dev)) {
- /* Disable the receive filter. Is 0/0 indeed an invalid receive
- channel? -- REW. Yes it is. -- Hang. Ok. I'll use -1
- (0xfff...) -- REW */
- submit_command (dev, &dev->hp_txq,
- QE_CMD_REG_WR | QE_CMD_IMM_INQ,
- 0x80 + vcc->channo, -1, 0 );
- }
- }
-
- fs_dprintk (FS_DEBUG_ALLOC, "Free vcc: %p\n", vcc);
- kfree (vcc);
-
- func_exit ();
-}
-
-
-static int fs_send (struct atm_vcc *atm_vcc, struct sk_buff *skb)
-{
- struct fs_dev *dev = FS_DEV (atm_vcc->dev);
- struct fs_vcc *vcc = FS_VCC (atm_vcc);
- struct FS_BPENTRY *td;
-
- func_enter ();
-
- fs_dprintk (FS_DEBUG_TXMEM, "I");
- fs_dprintk (FS_DEBUG_SEND, "Send: atm_vcc %p skb %p vcc %p dev %p\n",
- atm_vcc, skb, vcc, dev);
-
- fs_dprintk (FS_DEBUG_ALLOC, "Alloc t-skb: %p (atm_send)\n", skb);
-
- ATM_SKB(skb)->vcc = atm_vcc;
-
- vcc->last_skb = skb;
-
- td = kmalloc (sizeof (struct FS_BPENTRY), GFP_ATOMIC);
- fs_dprintk (FS_DEBUG_ALLOC, "Alloc transd: %p(%zd)\n", td, sizeof (struct FS_BPENTRY));
- if (!td) {
- /* Oops out of mem */
- return -ENOMEM;
- }
-
- fs_dprintk (FS_DEBUG_SEND, "first word in buffer: %x\n",
- *(int *) skb->data);
-
- td->flags = TD_EPI | TD_DATA | skb->len;
- td->next = 0;
- td->bsa = virt_to_bus (skb->data);
- td->skb = skb;
- td->dev = dev;
- dev->ntxpckts++;
-
-#ifdef DEBUG_EXTRA
- da[qd] = td;
- dq[qd].flags = td->flags;
- dq[qd].next = td->next;
- dq[qd].bsa = td->bsa;
- dq[qd].skb = td->skb;
- dq[qd].dev = td->dev;
- qd++;
- if (qd >= 60) qd = 0;
-#endif
-
- submit_queue (dev, &dev->hp_txq,
- QE_TRANSMIT_DE | vcc->channo,
- virt_to_bus (td), 0,
- virt_to_bus (td));
-
- fs_dprintk (FS_DEBUG_QUEUE, "in send: txq %d txrq %d\n",
- read_fs (dev, Q_EA (dev->hp_txq.offset)) -
- read_fs (dev, Q_SA (dev->hp_txq.offset)),
- read_fs (dev, Q_EA (dev->tx_relq.offset)) -
- read_fs (dev, Q_SA (dev->tx_relq.offset)));
-
- func_exit ();
- return 0;
-}
-
-
-/* Some function placeholders for functions we don't yet support. */
-
-#if 0
-static int fs_ioctl(struct atm_dev *dev,unsigned int cmd,void __user *arg)
-{
- func_enter ();
- func_exit ();
- return -ENOIOCTLCMD;
-}
-
-
-static int fs_getsockopt(struct atm_vcc *vcc,int level,int optname,
- void __user *optval,int optlen)
-{
- func_enter ();
- func_exit ();
- return 0;
-}
-
-
-static int fs_setsockopt(struct atm_vcc *vcc,int level,int optname,
- void __user *optval,unsigned int optlen)
-{
- func_enter ();
- func_exit ();
- return 0;
-}
-
-
-static void fs_phy_put(struct atm_dev *dev,unsigned char value,
- unsigned long addr)
-{
- func_enter ();
- func_exit ();
-}
-
-
-static unsigned char fs_phy_get(struct atm_dev *dev,unsigned long addr)
-{
- func_enter ();
- func_exit ();
- return 0;
-}
-
-
-static int fs_change_qos(struct atm_vcc *vcc,struct atm_qos *qos,int flags)
-{
- func_enter ();
- func_exit ();
- return 0;
-};
-
-#endif
-
-
-static const struct atmdev_ops ops = {
- .open = fs_open,
- .close = fs_close,
- .send = fs_send,
- .owner = THIS_MODULE,
- /* ioctl: fs_ioctl, */
- /* change_qos: fs_change_qos, */
-
- /* For now implement these internally here... */
- /* phy_put: fs_phy_put, */
- /* phy_get: fs_phy_get, */
-};
-
-
-static void undocumented_pci_fix(struct pci_dev *pdev)
-{
- u32 tint;
-
- /* The Windows driver says: */
- /* Switch off FireStream Retry Limit Threshold
- */
-
- /* The register at 0x28 is documented as "reserved", no further
- comments. */
-
- pci_read_config_dword (pdev, 0x28, &tint);
- if (tint != 0x80) {
- tint = 0x80;
- pci_write_config_dword (pdev, 0x28, tint);
- }
-}
-
-
-
-/**************************************************************************
- * PHY routines *
- **************************************************************************/
-
-static void write_phy(struct fs_dev *dev, int regnum, int val)
-{
- submit_command (dev, &dev->hp_txq, QE_CMD_PRP_WR | QE_CMD_IMM_INQ,
- regnum, val, 0);
-}
-
-static int init_phy(struct fs_dev *dev, struct reginit_item *reginit)
-{
- int i;
-
- func_enter ();
- while (reginit->reg != PHY_EOF) {
- if (reginit->reg == PHY_CLEARALL) {
- /* "PHY_CLEARALL means clear all registers. Numregisters is in "val". */
- for (i=0;i<reginit->val;i++) {
- write_phy (dev, i, 0);
- }
- } else {
- write_phy (dev, reginit->reg, reginit->val);
- }
- reginit++;
- }
- func_exit ();
- return 0;
-}
-
-static void reset_chip (struct fs_dev *dev)
-{
- int i;
-
- write_fs (dev, SARMODE0, SARMODE0_SRTS0);
-
- /* Undocumented delay */
- udelay (128);
-
- /* The "internal registers are documented to all reset to zero, but
- comments & code in the Windows driver indicates that the pools are
- NOT reset. */
- for (i=0;i < FS_NR_FREE_POOLS;i++) {
- write_fs (dev, FP_CNF (RXB_FP(i)), 0);
- write_fs (dev, FP_SA (RXB_FP(i)), 0);
- write_fs (dev, FP_EA (RXB_FP(i)), 0);
- write_fs (dev, FP_CNT (RXB_FP(i)), 0);
- write_fs (dev, FP_CTU (RXB_FP(i)), 0);
- }
-
- /* The same goes for the match channel registers, although those are
- NOT documented that way in the Windows driver. -- REW */
- /* The Windows driver DOES write 0 to these registers somewhere in
- the init sequence. However, a small hardware-feature, will
- prevent reception of data on VPI/VCI = 0/0 (Unless the channel
- allocated happens to have no disabled channels that have a lower
- number. -- REW */
-
- /* Clear the match channel registers. */
- if (IS_FS50 (dev)) {
- for (i=0;i<FS50_NR_CHANNELS;i++) {
- write_fs (dev, 0x200 + i * 4, -1);
- }
- }
-}
-
-static void *aligned_kmalloc(int size, gfp_t flags, int alignment)
-{
- void *t;
-
- if (alignment <= 0x10) {
- t = kmalloc (size, flags);
- if ((unsigned long)t & (alignment-1)) {
- printk ("Kmalloc doesn't align things correctly! %p\n", t);
- kfree (t);
- return aligned_kmalloc (size, flags, alignment * 4);
- }
- return t;
- }
- printk (KERN_ERR "Request for > 0x10 alignment not yet implemented (hard!)\n");
- return NULL;
-}
-
-static int init_q(struct fs_dev *dev, struct queue *txq, int queue,
- int nentries, int is_rq)
-{
- int sz = nentries * sizeof (struct FS_QENTRY);
- struct FS_QENTRY *p;
-
- func_enter ();
-
- fs_dprintk (FS_DEBUG_INIT, "Initializing queue at %x: %d entries:\n",
- queue, nentries);
-
- p = aligned_kmalloc (sz, GFP_KERNEL, 0x10);
- fs_dprintk (FS_DEBUG_ALLOC, "Alloc queue: %p(%d)\n", p, sz);
-
- if (!p) return 0;
-
- write_fs (dev, Q_SA(queue), virt_to_bus(p));
- write_fs (dev, Q_EA(queue), virt_to_bus(p+nentries-1));
- write_fs (dev, Q_WP(queue), virt_to_bus(p));
- write_fs (dev, Q_RP(queue), virt_to_bus(p));
- if (is_rq) {
- /* Configuration for the receive queue: 0: interrupt immediately,
- no pre-warning to empty queues: We do our best to keep the
- queue filled anyway. */
- write_fs (dev, Q_CNF(queue), 0 );
- }
-
- txq->sa = p;
- txq->ea = p;
- txq->offset = queue;
-
- func_exit ();
- return 1;
-}
-
-
-static int init_fp(struct fs_dev *dev, struct freepool *fp, int queue,
- int bufsize, int nr_buffers)
-{
- func_enter ();
-
- fs_dprintk (FS_DEBUG_INIT, "Initializing free pool at %x:\n", queue);
-
- write_fs (dev, FP_CNF(queue), (bufsize * RBFP_RBS) | RBFP_RBSVAL | RBFP_CME);
- write_fs (dev, FP_SA(queue), 0);
- write_fs (dev, FP_EA(queue), 0);
- write_fs (dev, FP_CTU(queue), 0);
- write_fs (dev, FP_CNT(queue), 0);
-
- fp->offset = queue;
- fp->bufsize = bufsize;
- fp->nr_buffers = nr_buffers;
-
- func_exit ();
- return 1;
-}
-
-
-static inline int nr_buffers_in_freepool (struct fs_dev *dev, struct freepool *fp)
-{
-#if 0
- /* This seems to be unreliable.... */
- return read_fs (dev, FP_CNT (fp->offset));
-#else
- return fp->n;
-#endif
-}
-
-
-/* Check if this gets going again if a pool ever runs out. -- Yes, it
- does. I've seen "receive abort: no buffers" and things started
- working again after that... -- REW */
-
-static void top_off_fp (struct fs_dev *dev, struct freepool *fp,
- gfp_t gfp_flags)
-{
- struct FS_BPENTRY *qe, *ne;
- struct sk_buff *skb;
- int n = 0;
- u32 qe_tmp;
-
- fs_dprintk (FS_DEBUG_QUEUE, "Topping off queue at %x (%d-%d/%d)\n",
- fp->offset, read_fs (dev, FP_CNT (fp->offset)), fp->n,
- fp->nr_buffers);
- while (nr_buffers_in_freepool(dev, fp) < fp->nr_buffers) {
-
- skb = alloc_skb (fp->bufsize, gfp_flags);
- fs_dprintk (FS_DEBUG_ALLOC, "Alloc rec-skb: %p(%d)\n", skb, fp->bufsize);
- if (!skb) break;
- ne = kmalloc (sizeof (struct FS_BPENTRY), gfp_flags);
- fs_dprintk (FS_DEBUG_ALLOC, "Alloc rec-d: %p(%zd)\n", ne, sizeof (struct FS_BPENTRY));
- if (!ne) {
- fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p\n", skb);
- dev_kfree_skb_any (skb);
- break;
- }
-
- fs_dprintk (FS_DEBUG_QUEUE, "Adding skb %p desc %p -> %p(%p) ",
- skb, ne, skb->data, skb->head);
- n++;
- ne->flags = FP_FLAGS_EPI | fp->bufsize;
- ne->next = virt_to_bus (NULL);
- ne->bsa = virt_to_bus (skb->data);
- ne->aal_bufsize = fp->bufsize;
- ne->skb = skb;
- ne->fp = fp;
-
- /*
- * FIXME: following code encodes and decodes
- * machine pointers (could be 64-bit) into a
- * 32-bit register.
- */
-
- qe_tmp = read_fs (dev, FP_EA(fp->offset));
- fs_dprintk (FS_DEBUG_QUEUE, "link at %x\n", qe_tmp);
- if (qe_tmp) {
- qe = bus_to_virt ((long) qe_tmp);
- qe->next = virt_to_bus(ne);
- qe->flags &= ~FP_FLAGS_EPI;
- } else
- write_fs (dev, FP_SA(fp->offset), virt_to_bus(ne));
-
- write_fs (dev, FP_EA(fp->offset), virt_to_bus (ne));
- fp->n++; /* XXX Atomic_inc? */
- write_fs (dev, FP_CTU(fp->offset), 1);
- }
-
- fs_dprintk (FS_DEBUG_QUEUE, "Added %d entries. \n", n);
-}
-
-static void free_queue(struct fs_dev *dev, struct queue *txq)
-{
- func_enter ();
-
- write_fs (dev, Q_SA(txq->offset), 0);
- write_fs (dev, Q_EA(txq->offset), 0);
- write_fs (dev, Q_RP(txq->offset), 0);
- write_fs (dev, Q_WP(txq->offset), 0);
- /* Configuration ? */
-
- fs_dprintk (FS_DEBUG_ALLOC, "Free queue: %p\n", txq->sa);
- kfree (txq->sa);
-
- func_exit ();
-}
-
-static void free_freepool(struct fs_dev *dev, struct freepool *fp)
-{
- func_enter ();
-
- write_fs (dev, FP_CNF(fp->offset), 0);
- write_fs (dev, FP_SA (fp->offset), 0);
- write_fs (dev, FP_EA (fp->offset), 0);
- write_fs (dev, FP_CNT(fp->offset), 0);
- write_fs (dev, FP_CTU(fp->offset), 0);
-
- func_exit ();
-}
-
-
-
-static irqreturn_t fs_irq (int irq, void *dev_id)
-{
- int i;
- u32 status;
- struct fs_dev *dev = dev_id;
-
- status = read_fs (dev, ISR);
- if (!status)
- return IRQ_NONE;
-
- func_enter ();
-
-#ifdef IRQ_RATE_LIMIT
- /* Aaargh! I'm ashamed. This costs more lines-of-code than the actual
- interrupt routine!. (Well, used to when I wrote that comment) -- REW */
- {
- static int lastjif;
- static int nintr=0;
-
- if (lastjif == jiffies) {
- if (++nintr > IRQ_RATE_LIMIT) {
- free_irq (dev->irq, dev_id);
- printk (KERN_ERR "fs: Too many interrupts. Turning off interrupt %d.\n",
- dev->irq);
- }
- } else {
- lastjif = jiffies;
- nintr = 0;
- }
- }
-#endif
- fs_dprintk (FS_DEBUG_QUEUE, "in intr: txq %d txrq %d\n",
- read_fs (dev, Q_EA (dev->hp_txq.offset)) -
- read_fs (dev, Q_SA (dev->hp_txq.offset)),
- read_fs (dev, Q_EA (dev->tx_relq.offset)) -
- read_fs (dev, Q_SA (dev->tx_relq.offset)));
-
- /* print the bits in the ISR register. */
- if (fs_debug & FS_DEBUG_IRQ) {
- /* The FS_DEBUG things are unnecessary here. But this way it is
- clear for grep that these are debug prints. */
- fs_dprintk (FS_DEBUG_IRQ, "IRQ status:");
- for (i=0;i<27;i++)
- if (status & (1 << i))
- fs_dprintk (FS_DEBUG_IRQ, " %s", irq_bitname[i]);
- fs_dprintk (FS_DEBUG_IRQ, "\n");
- }
-
- if (status & ISR_RBRQ0_W) {
- fs_dprintk (FS_DEBUG_IRQ, "Iiiin-coming (0)!!!!\n");
- process_incoming (dev, &dev->rx_rq[0]);
- /* items mentioned on RBRQ0 are from FP 0 or 1. */
- top_off_fp (dev, &dev->rx_fp[0], GFP_ATOMIC);
- top_off_fp (dev, &dev->rx_fp[1], GFP_ATOMIC);
- }
-
- if (status & ISR_RBRQ1_W) {
- fs_dprintk (FS_DEBUG_IRQ, "Iiiin-coming (1)!!!!\n");
- process_incoming (dev, &dev->rx_rq[1]);
- top_off_fp (dev, &dev->rx_fp[2], GFP_ATOMIC);
- top_off_fp (dev, &dev->rx_fp[3], GFP_ATOMIC);
- }
-
- if (status & ISR_RBRQ2_W) {
- fs_dprintk (FS_DEBUG_IRQ, "Iiiin-coming (2)!!!!\n");
- process_incoming (dev, &dev->rx_rq[2]);
- top_off_fp (dev, &dev->rx_fp[4], GFP_ATOMIC);
- top_off_fp (dev, &dev->rx_fp[5], GFP_ATOMIC);
- }
-
- if (status & ISR_RBRQ3_W) {
- fs_dprintk (FS_DEBUG_IRQ, "Iiiin-coming (3)!!!!\n");
- process_incoming (dev, &dev->rx_rq[3]);
- top_off_fp (dev, &dev->rx_fp[6], GFP_ATOMIC);
- top_off_fp (dev, &dev->rx_fp[7], GFP_ATOMIC);
- }
-
- if (status & ISR_CSQ_W) {
- fs_dprintk (FS_DEBUG_IRQ, "Command executed ok!\n");
- process_return_queue (dev, &dev->st_q);
- }
-
- if (status & ISR_TBRQ_W) {
- fs_dprintk (FS_DEBUG_IRQ, "Data transmitted!\n");
- process_txdone_queue (dev, &dev->tx_relq);
- }
-
- func_exit ();
- return IRQ_HANDLED;
-}
-
-
-#ifdef FS_POLL_FREQ
-static void fs_poll (struct timer_list *t)
-{
- struct fs_dev *dev = from_timer(dev, t, timer);
-
- fs_irq (0, dev);
- dev->timer.expires = jiffies + FS_POLL_FREQ;
- add_timer (&dev->timer);
-}
-#endif
-
-static int fs_init(struct fs_dev *dev)
-{
- struct pci_dev *pci_dev;
- int isr, to;
- int i;
-
- func_enter ();
- pci_dev = dev->pci_dev;
-
- printk (KERN_INFO "found a FireStream %d card, base %16llx, irq%d.\n",
- IS_FS50(dev)?50:155,
- (unsigned long long)pci_resource_start(pci_dev, 0),
- dev->pci_dev->irq);
-
- if (fs_debug & FS_DEBUG_INIT)
- my_hd ((unsigned char *) dev, sizeof (*dev));
-
- undocumented_pci_fix (pci_dev);
-
- dev->hw_base = pci_resource_start(pci_dev, 0);
-
- dev->base = ioremap(dev->hw_base, 0x1000);
- if (!dev->base)
- return 1;
-
- reset_chip (dev);
-
- write_fs (dev, SARMODE0, 0
- | (0 * SARMODE0_SHADEN) /* We don't use shadow registers. */
- | (1 * SARMODE0_INTMODE_READCLEAR)
- | (1 * SARMODE0_CWRE)
- | (IS_FS50(dev) ? SARMODE0_PRPWT_FS50_5:
- SARMODE0_PRPWT_FS155_3)
- | (1 * SARMODE0_CALSUP_1)
- | (IS_FS50(dev) ? (0
- | SARMODE0_RXVCS_32
- | SARMODE0_ABRVCS_32
- | SARMODE0_TXVCS_32):
- (0
- | SARMODE0_RXVCS_1k
- | SARMODE0_ABRVCS_1k
- | SARMODE0_TXVCS_1k)));
-
- /* 10ms * 100 is 1 second. That should be enough, as AN3:9 says it takes
- 1ms. */
- to = 100;
- while (--to) {
- isr = read_fs (dev, ISR);
-
- /* This bit is documented as "RESERVED" */
- if (isr & ISR_INIT_ERR) {
- printk (KERN_ERR "Error initializing the FS... \n");
- goto unmap;
- }
- if (isr & ISR_INIT) {
- fs_dprintk (FS_DEBUG_INIT, "Ha! Initialized OK!\n");
- break;
- }
-
- /* Try again after 10ms. */
- msleep(10);
- }
-
- if (!to) {
- printk (KERN_ERR "timeout initializing the FS... \n");
- goto unmap;
- }
-
- /* XXX fix for fs155 */
- dev->channel_mask = 0x1f;
- dev->channo = 0;
-
- /* AN3: 10 */
- write_fs (dev, SARMODE1, 0
- | (fs_keystream * SARMODE1_DEFHEC) /* XXX PHY */
- | ((loopback == 1) * SARMODE1_TSTLP) /* XXX Loopback mode enable... */
- | (1 * SARMODE1_DCRM)
- | (1 * SARMODE1_DCOAM)
- | (0 * SARMODE1_OAMCRC)
- | (0 * SARMODE1_DUMPE)
- | (0 * SARMODE1_GPLEN)
- | (0 * SARMODE1_GNAM)
- | (0 * SARMODE1_GVAS)
- | (0 * SARMODE1_GPAS)
- | (1 * SARMODE1_GPRI)
- | (0 * SARMODE1_PMS)
- | (0 * SARMODE1_GFCR)
- | (1 * SARMODE1_HECM2)
- | (1 * SARMODE1_HECM1)
- | (1 * SARMODE1_HECM0)
- | (1 << 12) /* That's what hang's driver does. Program to 0 */
- | (0 * 0xff) /* XXX FS155 */);
-
-
- /* Cal prescale etc */
-
- /* AN3: 11 */
- write_fs (dev, TMCONF, 0x0000000f);
- write_fs (dev, CALPRESCALE, 0x01010101 * num);
- write_fs (dev, 0x80, 0x000F00E4);
-
- /* AN3: 12 */
- write_fs (dev, CELLOSCONF, 0
- | ( 0 * CELLOSCONF_CEN)
- | ( CELLOSCONF_SC1)
- | (0x80 * CELLOSCONF_COBS)
- | (num * CELLOSCONF_COPK) /* Changed from 0xff to 0x5a */
- | (num * CELLOSCONF_COST));/* after a hint from Hang.
- * performance jumped 50->70... */
-
- /* Magic value by Hang */
- write_fs (dev, CELLOSCONF_COST, 0x0B809191);
-
- if (IS_FS50 (dev)) {
- write_fs (dev, RAS0, RAS0_DCD_XHLT);
- dev->atm_dev->ci_range.vpi_bits = 12;
- dev->atm_dev->ci_range.vci_bits = 16;
- dev->nchannels = FS50_NR_CHANNELS;
- } else {
- write_fs (dev, RAS0, RAS0_DCD_XHLT
- | (((1 << FS155_VPI_BITS) - 1) * RAS0_VPSEL)
- | (((1 << FS155_VCI_BITS) - 1) * RAS0_VCSEL));
- /* We can chose the split arbitrarily. We might be able to
- support more. Whatever. This should do for now. */
- dev->atm_dev->ci_range.vpi_bits = FS155_VPI_BITS;
- dev->atm_dev->ci_range.vci_bits = FS155_VCI_BITS;
-
- /* Address bits we can't use should be compared to 0. */
- write_fs (dev, RAC, 0);
-
- /* Manual (AN9, page 6) says ASF1=0 means compare Utopia address
- * too. I can't find ASF1 anywhere. Anyway, we AND with just the
- * other bits, then compare with 0, which is exactly what we
- * want. */
- write_fs (dev, RAM, (1 << (28 - FS155_VPI_BITS - FS155_VCI_BITS)) - 1);
- dev->nchannels = FS155_NR_CHANNELS;
- }
- dev->atm_vccs = kcalloc (dev->nchannels, sizeof (struct atm_vcc *),
- GFP_KERNEL);
- fs_dprintk (FS_DEBUG_ALLOC, "Alloc atmvccs: %p(%zd)\n",
- dev->atm_vccs, dev->nchannels * sizeof (struct atm_vcc *));
-
- if (!dev->atm_vccs) {
- printk (KERN_WARNING "Couldn't allocate memory for VCC buffers. Woops!\n");
- /* XXX Clean up..... */
- goto unmap;
- }
-
- dev->tx_inuse = kzalloc (dev->nchannels / 8 /* bits/byte */ , GFP_KERNEL);
- fs_dprintk (FS_DEBUG_ALLOC, "Alloc tx_inuse: %p(%d)\n",
- dev->atm_vccs, dev->nchannels / 8);
-
- if (!dev->tx_inuse) {
- printk (KERN_WARNING "Couldn't allocate memory for tx_inuse bits!\n");
- /* XXX Clean up..... */
- goto unmap;
- }
- /* -- RAS1 : FS155 and 50 differ. Default (0) should be OK for both */
- /* -- RAS2 : FS50 only: Default is OK. */
-
- /* DMAMODE, default should be OK. -- REW */
- write_fs (dev, DMAMR, DMAMR_TX_MODE_FULL);
-
- init_q (dev, &dev->hp_txq, TX_PQ(TXQ_HP), TXQ_NENTRIES, 0);
- init_q (dev, &dev->lp_txq, TX_PQ(TXQ_LP), TXQ_NENTRIES, 0);
- init_q (dev, &dev->tx_relq, TXB_RQ, TXQ_NENTRIES, 1);
- init_q (dev, &dev->st_q, ST_Q, TXQ_NENTRIES, 1);
-
- for (i=0;i < FS_NR_FREE_POOLS;i++) {
- init_fp (dev, &dev->rx_fp[i], RXB_FP(i),
- rx_buf_sizes[i], rx_pool_sizes[i]);
- top_off_fp (dev, &dev->rx_fp[i], GFP_KERNEL);
- }
-
-
- for (i=0;i < FS_NR_RX_QUEUES;i++)
- init_q (dev, &dev->rx_rq[i], RXB_RQ(i), RXRQ_NENTRIES, 1);
-
- dev->irq = pci_dev->irq;
- if (request_irq (dev->irq, fs_irq, IRQF_SHARED, "firestream", dev)) {
- printk (KERN_WARNING "couldn't get irq %d for firestream.\n", pci_dev->irq);
- /* XXX undo all previous stuff... */
- goto unmap;
- }
- fs_dprintk (FS_DEBUG_INIT, "Grabbed irq %d for dev at %p.\n", dev->irq, dev);
-
- /* We want to be notified of most things. Just the statistics count
- overflows are not interesting */
- write_fs (dev, IMR, 0
- | ISR_RBRQ0_W
- | ISR_RBRQ1_W
- | ISR_RBRQ2_W
- | ISR_RBRQ3_W
- | ISR_TBRQ_W
- | ISR_CSQ_W);
-
- write_fs (dev, SARMODE0, 0
- | (0 * SARMODE0_SHADEN) /* We don't use shadow registers. */
- | (1 * SARMODE0_GINT)
- | (1 * SARMODE0_INTMODE_READCLEAR)
- | (0 * SARMODE0_CWRE)
- | (IS_FS50(dev)?SARMODE0_PRPWT_FS50_5:
- SARMODE0_PRPWT_FS155_3)
- | (1 * SARMODE0_CALSUP_1)
- | (IS_FS50 (dev)?(0
- | SARMODE0_RXVCS_32
- | SARMODE0_ABRVCS_32
- | SARMODE0_TXVCS_32):
- (0
- | SARMODE0_RXVCS_1k
- | SARMODE0_ABRVCS_1k
- | SARMODE0_TXVCS_1k))
- | (1 * SARMODE0_RUN));
-
- init_phy (dev, PHY_NTC_INIT);
-
- if (loopback == 2) {
- write_phy (dev, 0x39, 0x000e);
- }
-
-#ifdef FS_POLL_FREQ
- timer_setup(&dev->timer, fs_poll, 0);
- dev->timer.expires = jiffies + FS_POLL_FREQ;
- add_timer (&dev->timer);
-#endif
-
- dev->atm_dev->dev_data = dev;
-
- func_exit ();
- return 0;
-unmap:
- iounmap(dev->base);
- return 1;
-}
-
-static int firestream_init_one(struct pci_dev *pci_dev,
- const struct pci_device_id *ent)
-{
- struct atm_dev *atm_dev;
- struct fs_dev *fs_dev;
-
- if (pci_enable_device(pci_dev))
- goto err_out;
-
- fs_dev = kzalloc (sizeof (struct fs_dev), GFP_KERNEL);
- fs_dprintk (FS_DEBUG_ALLOC, "Alloc fs-dev: %p(%zd)\n",
- fs_dev, sizeof (struct fs_dev));
- if (!fs_dev)
- goto err_out;
- atm_dev = atm_dev_register("fs", &pci_dev->dev, &ops, -1, NULL);
- if (!atm_dev)
- goto err_out_free_fs_dev;
-
- fs_dev->pci_dev = pci_dev;
- fs_dev->atm_dev = atm_dev;
- fs_dev->flags = ent->driver_data;
-
- if (fs_init(fs_dev))
- goto err_out_free_atm_dev;
-
- fs_dev->next = fs_boards;
- fs_boards = fs_dev;
- return 0;
-
- err_out_free_atm_dev:
- atm_dev_deregister(atm_dev);
- err_out_free_fs_dev:
- kfree(fs_dev);
- err_out:
- return -ENODEV;
-}
-
-static void firestream_remove_one(struct pci_dev *pdev)
-{
- int i;
- struct fs_dev *dev, *nxtdev;
- struct fs_vcc *vcc;
- struct FS_BPENTRY *fp, *nxt;
-
- func_enter ();
-
-#if 0
- printk ("hptxq:\n");
- for (i=0;i<60;i++) {
- printk ("%d: %08x %08x %08x %08x \n",
- i, pq[qp].cmd, pq[qp].p0, pq[qp].p1, pq[qp].p2);
- qp++;
- if (qp >= 60) qp = 0;
- }
-
- printk ("descriptors:\n");
- for (i=0;i<60;i++) {
- printk ("%d: %p: %08x %08x %p %p\n",
- i, da[qd], dq[qd].flags, dq[qd].bsa, dq[qd].skb, dq[qd].dev);
- qd++;
- if (qd >= 60) qd = 0;
- }
-#endif
-
- for (dev = fs_boards;dev != NULL;dev=nxtdev) {
- fs_dprintk (FS_DEBUG_CLEANUP, "Releasing resources for dev at %p.\n", dev);
-
- /* XXX Hit all the tx channels too! */
-
- for (i=0;i < dev->nchannels;i++) {
- if (dev->atm_vccs[i]) {
- vcc = FS_VCC (dev->atm_vccs[i]);
- submit_command (dev, &dev->hp_txq,
- QE_CMD_TX_PURGE_INH | QE_CMD_IMM_INQ | vcc->channo, 0,0,0);
- submit_command (dev, &dev->hp_txq,
- QE_CMD_RX_PURGE_INH | QE_CMD_IMM_INQ | vcc->channo, 0,0,0);
-
- }
- }
-
- /* XXX Wait a while for the chip to release all buffers. */
-
- for (i=0;i < FS_NR_FREE_POOLS;i++) {
- for (fp=bus_to_virt (read_fs (dev, FP_SA(dev->rx_fp[i].offset)));
- !(fp->flags & FP_FLAGS_EPI);fp = nxt) {
- fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p\n", fp->skb);
- dev_kfree_skb_any (fp->skb);
- nxt = bus_to_virt (fp->next);
- fs_dprintk (FS_DEBUG_ALLOC, "Free rec-d: %p\n", fp);
- kfree (fp);
- }
- fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p\n", fp->skb);
- dev_kfree_skb_any (fp->skb);
- fs_dprintk (FS_DEBUG_ALLOC, "Free rec-d: %p\n", fp);
- kfree (fp);
- }
-
- /* Hang the chip in "reset", prevent it clobbering memory that is
- no longer ours. */
- reset_chip (dev);
-
- fs_dprintk (FS_DEBUG_CLEANUP, "Freeing irq%d.\n", dev->irq);
- free_irq (dev->irq, dev);
- del_timer_sync (&dev->timer);
-
- atm_dev_deregister(dev->atm_dev);
- free_queue (dev, &dev->hp_txq);
- free_queue (dev, &dev->lp_txq);
- free_queue (dev, &dev->tx_relq);
- free_queue (dev, &dev->st_q);
-
- fs_dprintk (FS_DEBUG_ALLOC, "Free atmvccs: %p\n", dev->atm_vccs);
- kfree (dev->atm_vccs);
-
- for (i=0;i< FS_NR_FREE_POOLS;i++)
- free_freepool (dev, &dev->rx_fp[i]);
-
- for (i=0;i < FS_NR_RX_QUEUES;i++)
- free_queue (dev, &dev->rx_rq[i]);
-
- iounmap(dev->base);
- fs_dprintk (FS_DEBUG_ALLOC, "Free fs-dev: %p\n", dev);
- nxtdev = dev->next;
- kfree (dev);
- }
-
- func_exit ();
-}
-
-static const struct pci_device_id firestream_pci_tbl[] = {
- { PCI_VDEVICE(FUJITSU_ME, PCI_DEVICE_ID_FUJITSU_FS50), FS_IS50},
- { PCI_VDEVICE(FUJITSU_ME, PCI_DEVICE_ID_FUJITSU_FS155), FS_IS155},
- { 0, }
-};
-
-MODULE_DEVICE_TABLE(pci, firestream_pci_tbl);
-
-static struct pci_driver firestream_driver = {
- .name = "firestream",
- .id_table = firestream_pci_tbl,
- .probe = firestream_init_one,
- .remove = firestream_remove_one,
-};
-
-static int __init firestream_init_module (void)
-{
- int error;
-
- func_enter ();
- error = pci_register_driver(&firestream_driver);
- func_exit ();
- return error;
-}
-
-static void __exit firestream_cleanup_module(void)
-{
- pci_unregister_driver(&firestream_driver);
-}
-
-module_init(firestream_init_module);
-module_exit(firestream_cleanup_module);
-
-MODULE_LICENSE("GPL");
-
-
-
diff --git a/drivers/atm/firestream.h b/drivers/atm/firestream.h
deleted file mode 100644
index 6d684160808d..000000000000
--- a/drivers/atm/firestream.h
+++ /dev/null
@@ -1,502 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/* drivers/atm/firestream.h - FireStream 155 (MB86697) and
- * FireStream 50 (MB86695) device driver
- */
-
-/* Written & (C) 2000 by R.E.Wolff@BitWizard.nl
- * Copied snippets from zatm.c by Werner Almesberger, EPFL LRC/ICA
- * and ambassador.c Copyright (C) 1995-1999 Madge Networks Ltd
- */
-
-/*
-*/
-
-
-/***********************************************************************
- * first the defines for the chip. *
- ***********************************************************************/
-
-
-/********************* General chip parameters. ************************/
-
-#define FS_NR_FREE_POOLS 8
-#define FS_NR_RX_QUEUES 4
-
-
-/********************* queues and queue access macros ******************/
-
-
-/* A queue entry. */
-struct FS_QENTRY {
- u32 cmd;
- u32 p0, p1, p2;
-};
-
-
-/* A freepool entry. */
-struct FS_BPENTRY {
- u32 flags;
- u32 next;
- u32 bsa;
- u32 aal_bufsize;
-
- /* The hardware doesn't look at this, but we need the SKB somewhere... */
- struct sk_buff *skb;
- struct freepool *fp;
- struct fs_dev *dev;
-};
-
-
-#define STATUS_CODE(qe) ((qe->cmd >> 22) & 0x3f)
-
-
-/* OFFSETS against the base of a QUEUE... */
-#define QSA 0x00
-#define QEA 0x04
-#define QRP 0x08
-#define QWP 0x0c
-#define QCNF 0x10 /* Only for Release queues! */
-/* Not for the transmit pending queue. */
-
-
-/* OFFSETS against the base of a FREE POOL... */
-#define FPCNF 0x00
-#define FPSA 0x04
-#define FPEA 0x08
-#define FPCNT 0x0c
-#define FPCTU 0x10
-
-#define Q_SA(b) (b + QSA )
-#define Q_EA(b) (b + QEA )
-#define Q_RP(b) (b + QRP )
-#define Q_WP(b) (b + QWP )
-#define Q_CNF(b) (b + QCNF)
-
-#define FP_CNF(b) (b + FPCNF)
-#define FP_SA(b) (b + FPSA)
-#define FP_EA(b) (b + FPEA)
-#define FP_CNT(b) (b + FPCNT)
-#define FP_CTU(b) (b + FPCTU)
-
-/* bits in a queue register. */
-#define Q_FULL 0x1
-#define Q_EMPTY 0x2
-#define Q_INCWRAP 0x4
-#define Q_ADDR_MASK 0xfffffff0
-
-/* bits in a FreePool config register */
-#define RBFP_RBS (0x1 << 16)
-#define RBFP_RBSVAL (0x1 << 15)
-#define RBFP_CME (0x1 << 12)
-#define RBFP_DLP (0x1 << 11)
-#define RBFP_BFPWT (0x1 << 0)
-
-
-
-
-/* FireStream commands. */
-#define QE_CMD_NULL (0x00 << 22)
-#define QE_CMD_REG_RD (0x01 << 22)
-#define QE_CMD_REG_RDM (0x02 << 22)
-#define QE_CMD_REG_WR (0x03 << 22)
-#define QE_CMD_REG_WRM (0x04 << 22)
-#define QE_CMD_CONFIG_TX (0x05 << 22)
-#define QE_CMD_CONFIG_RX (0x06 << 22)
-#define QE_CMD_PRP_RD (0x07 << 22)
-#define QE_CMD_PRP_RDM (0x2a << 22)
-#define QE_CMD_PRP_WR (0x09 << 22)
-#define QE_CMD_PRP_WRM (0x2b << 22)
-#define QE_CMD_RX_EN (0x0a << 22)
-#define QE_CMD_RX_PURGE (0x0b << 22)
-#define QE_CMD_RX_PURGE_INH (0x0c << 22)
-#define QE_CMD_TX_EN (0x0d << 22)
-#define QE_CMD_TX_PURGE (0x0e << 22)
-#define QE_CMD_TX_PURGE_INH (0x0f << 22)
-#define QE_CMD_RST_CG (0x10 << 22)
-#define QE_CMD_SET_CG (0x11 << 22)
-#define QE_CMD_RST_CLP (0x12 << 22)
-#define QE_CMD_SET_CLP (0x13 << 22)
-#define QE_CMD_OVERRIDE (0x14 << 22)
-#define QE_CMD_ADD_BFP (0x15 << 22)
-#define QE_CMD_DUMP_TX (0x16 << 22)
-#define QE_CMD_DUMP_RX (0x17 << 22)
-#define QE_CMD_LRAM_RD (0x18 << 22)
-#define QE_CMD_LRAM_RDM (0x28 << 22)
-#define QE_CMD_LRAM_WR (0x19 << 22)
-#define QE_CMD_LRAM_WRM (0x29 << 22)
-#define QE_CMD_LRAM_BSET (0x1a << 22)
-#define QE_CMD_LRAM_BCLR (0x1b << 22)
-#define QE_CMD_CONFIG_SEGM (0x1c << 22)
-#define QE_CMD_READ_SEGM (0x1d << 22)
-#define QE_CMD_CONFIG_ROUT (0x1e << 22)
-#define QE_CMD_READ_ROUT (0x1f << 22)
-#define QE_CMD_CONFIG_TM (0x20 << 22)
-#define QE_CMD_READ_TM (0x21 << 22)
-#define QE_CMD_CONFIG_TXBM (0x22 << 22)
-#define QE_CMD_READ_TXBM (0x23 << 22)
-#define QE_CMD_CONFIG_RXBM (0x24 << 22)
-#define QE_CMD_READ_RXBM (0x25 << 22)
-#define QE_CMD_CONFIG_REAS (0x26 << 22)
-#define QE_CMD_READ_REAS (0x27 << 22)
-
-#define QE_TRANSMIT_DE (0x0 << 30)
-#define QE_CMD_LINKED (0x1 << 30)
-#define QE_CMD_IMM (0x2 << 30)
-#define QE_CMD_IMM_INQ (0x3 << 30)
-
-#define TD_EPI (0x1 << 27)
-#define TD_COMMAND (0x1 << 28)
-
-#define TD_DATA (0x0 << 29)
-#define TD_RM_CELL (0x1 << 29)
-#define TD_OAM_CELL (0x2 << 29)
-#define TD_OAM_CELL_SEGMENT (0x3 << 29)
-
-#define TD_BPI (0x1 << 20)
-
-#define FP_FLAGS_EPI (0x1 << 27)
-
-
-#define TX_PQ(i) (0x00 + (i) * 0x10)
-#define TXB_RQ (0x20)
-#define ST_Q (0x48)
-#define RXB_FP(i) (0x90 + (i) * 0x14)
-#define RXB_RQ(i) (0x134 + (i) * 0x14)
-
-
-#define TXQ_HP 0
-#define TXQ_LP 1
-
-/* Phew. You don't want to know how many revisions these simple queue
- * address macros went through before I got them nice and compact as
- * they are now. -- REW
- */
-
-
-/* And now for something completely different:
- * The rest of the registers... */
-
-
-#define CMDR0 0x34
-#define CMDR1 0x38
-#define CMDR2 0x3c
-#define CMDR3 0x40
-
-
-#define SARMODE0 0x5c
-
-#define SARMODE0_TXVCS_0 (0x0 << 0)
-#define SARMODE0_TXVCS_1k (0x1 << 0)
-#define SARMODE0_TXVCS_2k (0x2 << 0)
-#define SARMODE0_TXVCS_4k (0x3 << 0)
-#define SARMODE0_TXVCS_8k (0x4 << 0)
-#define SARMODE0_TXVCS_16k (0x5 << 0)
-#define SARMODE0_TXVCS_32k (0x6 << 0)
-#define SARMODE0_TXVCS_64k (0x7 << 0)
-#define SARMODE0_TXVCS_32 (0x8 << 0)
-
-#define SARMODE0_ABRVCS_0 (0x0 << 4)
-#define SARMODE0_ABRVCS_512 (0x1 << 4)
-#define SARMODE0_ABRVCS_1k (0x2 << 4)
-#define SARMODE0_ABRVCS_2k (0x3 << 4)
-#define SARMODE0_ABRVCS_4k (0x4 << 4)
-#define SARMODE0_ABRVCS_8k (0x5 << 4)
-#define SARMODE0_ABRVCS_16k (0x6 << 4)
-#define SARMODE0_ABRVCS_32k (0x7 << 4)
-#define SARMODE0_ABRVCS_32 (0x9 << 4) /* The others are "8", this one really has to
- be 9. Tell me you don't believe me. -- REW */
-
-#define SARMODE0_RXVCS_0 (0x0 << 8)
-#define SARMODE0_RXVCS_1k (0x1 << 8)
-#define SARMODE0_RXVCS_2k (0x2 << 8)
-#define SARMODE0_RXVCS_4k (0x3 << 8)
-#define SARMODE0_RXVCS_8k (0x4 << 8)
-#define SARMODE0_RXVCS_16k (0x5 << 8)
-#define SARMODE0_RXVCS_32k (0x6 << 8)
-#define SARMODE0_RXVCS_64k (0x7 << 8)
-#define SARMODE0_RXVCS_32 (0x8 << 8)
-
-#define SARMODE0_CALSUP_1 (0x0 << 12)
-#define SARMODE0_CALSUP_2 (0x1 << 12)
-#define SARMODE0_CALSUP_3 (0x2 << 12)
-#define SARMODE0_CALSUP_4 (0x3 << 12)
-
-#define SARMODE0_PRPWT_FS50_0 (0x0 << 14)
-#define SARMODE0_PRPWT_FS50_2 (0x1 << 14)
-#define SARMODE0_PRPWT_FS50_5 (0x2 << 14)
-#define SARMODE0_PRPWT_FS50_11 (0x3 << 14)
-
-#define SARMODE0_PRPWT_FS155_0 (0x0 << 14)
-#define SARMODE0_PRPWT_FS155_1 (0x1 << 14)
-#define SARMODE0_PRPWT_FS155_2 (0x2 << 14)
-#define SARMODE0_PRPWT_FS155_3 (0x3 << 14)
-
-#define SARMODE0_SRTS0 (0x1 << 23)
-#define SARMODE0_SRTS1 (0x1 << 24)
-
-#define SARMODE0_RUN (0x1 << 25)
-
-#define SARMODE0_UNLOCK (0x1 << 26)
-#define SARMODE0_CWRE (0x1 << 27)
-
-
-#define SARMODE0_INTMODE_READCLEAR (0x0 << 28)
-#define SARMODE0_INTMODE_READNOCLEAR (0x1 << 28)
-#define SARMODE0_INTMODE_READNOCLEARINHIBIT (0x2 << 28)
-#define SARMODE0_INTMODE_READCLEARINHIBIT (0x3 << 28) /* Tell me you don't believe me. */
-
-#define SARMODE0_GINT (0x1 << 30)
-#define SARMODE0_SHADEN (0x1 << 31)
-
-
-#define SARMODE1 0x60
-
-
-#define SARMODE1_TRTL_SHIFT 0 /* Program to 0 */
-#define SARMODE1_RRTL_SHIFT 4 /* Program to 0 */
-
-#define SARMODE1_TAGM (0x1 << 8) /* Program to 0 */
-
-#define SARMODE1_HECM0 (0x1 << 9)
-#define SARMODE1_HECM1 (0x1 << 10)
-#define SARMODE1_HECM2 (0x1 << 11)
-
-#define SARMODE1_GFCE (0x1 << 14)
-#define SARMODE1_GFCR (0x1 << 15)
-#define SARMODE1_PMS (0x1 << 18)
-#define SARMODE1_GPRI (0x1 << 19)
-#define SARMODE1_GPAS (0x1 << 20)
-#define SARMODE1_GVAS (0x1 << 21)
-#define SARMODE1_GNAM (0x1 << 22)
-#define SARMODE1_GPLEN (0x1 << 23)
-#define SARMODE1_DUMPE (0x1 << 24)
-#define SARMODE1_OAMCRC (0x1 << 25)
-#define SARMODE1_DCOAM (0x1 << 26)
-#define SARMODE1_DCRM (0x1 << 27)
-#define SARMODE1_TSTLP (0x1 << 28)
-#define SARMODE1_DEFHEC (0x1 << 29)
-
-
-#define ISR 0x64
-#define IUSR 0x68
-#define IMR 0x6c
-
-#define ISR_LPCO (0x1 << 0)
-#define ISR_DPCO (0x1 << 1)
-#define ISR_RBRQ0_W (0x1 << 2)
-#define ISR_RBRQ1_W (0x1 << 3)
-#define ISR_RBRQ2_W (0x1 << 4)
-#define ISR_RBRQ3_W (0x1 << 5)
-#define ISR_RBRQ0_NF (0x1 << 6)
-#define ISR_RBRQ1_NF (0x1 << 7)
-#define ISR_RBRQ2_NF (0x1 << 8)
-#define ISR_RBRQ3_NF (0x1 << 9)
-#define ISR_BFP_SC (0x1 << 10)
-#define ISR_INIT (0x1 << 11)
-#define ISR_INIT_ERR (0x1 << 12) /* Documented as "reserved" */
-#define ISR_USCEO (0x1 << 13)
-#define ISR_UPEC0 (0x1 << 14)
-#define ISR_VPFCO (0x1 << 15)
-#define ISR_CRCCO (0x1 << 16)
-#define ISR_HECO (0x1 << 17)
-#define ISR_TBRQ_W (0x1 << 18)
-#define ISR_TBRQ_NF (0x1 << 19)
-#define ISR_CTPQ_E (0x1 << 20)
-#define ISR_GFC_C0 (0x1 << 21)
-#define ISR_PCI_FTL (0x1 << 22)
-#define ISR_CSQ_W (0x1 << 23)
-#define ISR_CSQ_NF (0x1 << 24)
-#define ISR_EXT_INT (0x1 << 25)
-#define ISR_RXDMA_S (0x1 << 26)
-
-
-#define TMCONF 0x78
-/* Bits? */
-
-
-#define CALPRESCALE 0x7c
-/* Bits? */
-
-#define CELLOSCONF 0x84
-#define CELLOSCONF_COTS (0x1 << 28)
-#define CELLOSCONF_CEN (0x1 << 27)
-#define CELLOSCONF_SC8 (0x3 << 24)
-#define CELLOSCONF_SC4 (0x2 << 24)
-#define CELLOSCONF_SC2 (0x1 << 24)
-#define CELLOSCONF_SC1 (0x0 << 24)
-
-#define CELLOSCONF_COBS (0x1 << 16)
-#define CELLOSCONF_COPK (0x1 << 8)
-#define CELLOSCONF_COST (0x1 << 0)
-/* Bits? */
-
-#define RAS0 0x1bc
-#define RAS0_DCD_XHLT (0x1 << 31)
-
-#define RAS0_VPSEL (0x1 << 16)
-#define RAS0_VCSEL (0x1 << 0)
-
-#define RAS1 0x1c0
-#define RAS1_UTREG (0x1 << 5)
-
-
-#define DMAMR 0x1cc
-#define DMAMR_TX_MODE_FULL (0x0 << 0)
-#define DMAMR_TX_MODE_PART (0x1 << 0)
-#define DMAMR_TX_MODE_NONE (0x2 << 0) /* And 3 */
-
-
-
-#define RAS2 0x280
-
-#define RAS2_NNI (0x1 << 0)
-#define RAS2_USEL (0x1 << 1)
-#define RAS2_UBS (0x1 << 2)
-
-
-
-struct fs_transmit_config {
- u32 flags;
- u32 atm_hdr;
- u32 TMC[4];
- u32 spec;
- u32 rtag[3];
-};
-
-#define TC_FLAGS_AAL5 (0x0 << 29)
-#define TC_FLAGS_TRANSPARENT_PAYLOAD (0x1 << 29)
-#define TC_FLAGS_TRANSPARENT_CELL (0x2 << 29)
-#define TC_FLAGS_STREAMING (0x1 << 28)
-#define TC_FLAGS_PACKET (0x0)
-#define TC_FLAGS_TYPE_ABR (0x0 << 22)
-#define TC_FLAGS_TYPE_CBR (0x1 << 22)
-#define TC_FLAGS_TYPE_VBR (0x2 << 22)
-#define TC_FLAGS_TYPE_UBR (0x3 << 22)
-#define TC_FLAGS_CAL0 (0x0 << 20)
-#define TC_FLAGS_CAL1 (0x1 << 20)
-#define TC_FLAGS_CAL2 (0x2 << 20)
-#define TC_FLAGS_CAL3 (0x3 << 20)
-
-
-#define RC_FLAGS_NAM (0x1 << 13)
-#define RC_FLAGS_RXBM_PSB (0x0 << 14)
-#define RC_FLAGS_RXBM_CIF (0x1 << 14)
-#define RC_FLAGS_RXBM_PMB (0x2 << 14)
-#define RC_FLAGS_RXBM_STR (0x4 << 14)
-#define RC_FLAGS_RXBM_SAF (0x6 << 14)
-#define RC_FLAGS_RXBM_POS (0x6 << 14)
-#define RC_FLAGS_BFPS (0x1 << 17)
-
-#define RC_FLAGS_BFPS_BFP (0x1 << 17)
-
-#define RC_FLAGS_BFPS_BFP0 (0x0 << 17)
-#define RC_FLAGS_BFPS_BFP1 (0x1 << 17)
-#define RC_FLAGS_BFPS_BFP2 (0x2 << 17)
-#define RC_FLAGS_BFPS_BFP3 (0x3 << 17)
-#define RC_FLAGS_BFPS_BFP4 (0x4 << 17)
-#define RC_FLAGS_BFPS_BFP5 (0x5 << 17)
-#define RC_FLAGS_BFPS_BFP6 (0x6 << 17)
-#define RC_FLAGS_BFPS_BFP7 (0x7 << 17)
-#define RC_FLAGS_BFPS_BFP01 (0x8 << 17)
-#define RC_FLAGS_BFPS_BFP23 (0x9 << 17)
-#define RC_FLAGS_BFPS_BFP45 (0xa << 17)
-#define RC_FLAGS_BFPS_BFP67 (0xb << 17)
-#define RC_FLAGS_BFPS_BFP07 (0xc << 17)
-#define RC_FLAGS_BFPS_BFP27 (0xd << 17)
-#define RC_FLAGS_BFPS_BFP47 (0xe << 17)
-
-#define RC_FLAGS_BFPP (0x1 << 21)
-#define RC_FLAGS_TEVC (0x1 << 22)
-#define RC_FLAGS_TEP (0x1 << 23)
-#define RC_FLAGS_AAL5 (0x0 << 24)
-#define RC_FLAGS_TRANSP (0x1 << 24)
-#define RC_FLAGS_TRANSC (0x2 << 24)
-#define RC_FLAGS_ML (0x1 << 27)
-#define RC_FLAGS_TRBRM (0x1 << 28)
-#define RC_FLAGS_PRI (0x1 << 29)
-#define RC_FLAGS_HOAM (0x1 << 30)
-#define RC_FLAGS_CRC10 (0x1 << 31)
-
-
-#define RAC 0x1c8
-#define RAM 0x1c4
-
-
-
-/************************************************************************
- * Then the datastructures that the DRIVER uses. *
- ************************************************************************/
-
-#define TXQ_NENTRIES 32
-#define RXRQ_NENTRIES 1024
-
-
-struct fs_vcc {
- int channo;
- wait_queue_head_t close_wait;
- struct sk_buff *last_skb;
-};
-
-
-struct queue {
- struct FS_QENTRY *sa, *ea;
- int offset;
-};
-
-struct freepool {
- int offset;
- int bufsize;
- int nr_buffers;
- int n;
-};
-
-
-struct fs_dev {
- struct fs_dev *next; /* other FS devices */
- int flags;
-
- unsigned char irq; /* IRQ */
- struct pci_dev *pci_dev; /* PCI stuff */
- struct atm_dev *atm_dev;
- struct timer_list timer;
-
- unsigned long hw_base; /* mem base address */
- void __iomem *base; /* Mapping of base address */
- int channo;
- unsigned long channel_mask;
-
- struct queue hp_txq, lp_txq, tx_relq, st_q;
- struct freepool rx_fp[FS_NR_FREE_POOLS];
- struct queue rx_rq[FS_NR_RX_QUEUES];
-
- int nchannels;
- struct atm_vcc **atm_vccs;
- void *tx_inuse;
- int ntxpckts;
-};
-
-
-
-
-/* Number of channesl that the FS50 supports. */
-#define FS50_CHANNEL_BITS 5
-#define FS50_NR_CHANNELS (1 << FS50_CHANNEL_BITS)
-
-
-#define FS_DEV(atm_dev) ((struct fs_dev *) (atm_dev)->dev_data)
-#define FS_VCC(atm_vcc) ((struct fs_vcc *) (atm_vcc)->dev_data)
-
-
-#define FS_IS50 0x1
-#define FS_IS155 0x2
-
-#define IS_FS50(dev) (dev->flags & FS_IS50)
-#define IS_FS155(dev) (dev->flags & FS_IS155)
-
-/* Within limits this is user-configurable. */
-/* Note: Currently the sum (10 -> 1k channels) is hardcoded in the driver. */
-#define FS155_VPI_BITS 4
-#define FS155_VCI_BITS 6
-
-#define FS155_CHANNEL_BITS (FS155_VPI_BITS + FS155_VCI_BITS)
-#define FS155_NR_CHANNELS (1 << FS155_CHANNEL_BITS)
--
2.34.1
^ permalink raw reply related [flat|nested] 7+ messages in thread
* [PATCH net-next 3/6] net: atm: remove support for ZeitNet ZN122x ATM devices
[not found] <20220426175436.417283-1-kuba@kernel.org>
2022-04-26 17:54 ` [PATCH net-next 1/6] net: atm: remove support for Fujitsu FireStream ATM devices Jakub Kicinski
@ 2022-04-26 17:54 ` Jakub Kicinski
2022-08-10 7:36 ` Jiri Slaby
1 sibling, 1 reply; 7+ messages in thread
From: Jakub Kicinski @ 2022-04-26 17:54 UTC (permalink / raw)
To: davem, pabeni
Cc: netdev, Jakub Kicinski, Chas Williams, linux-atm-general,
Thomas Bogendoerfer, linux-mips, arnd
This driver received nothing but automated fixes in the last 15 years.
Since it's using virt_to_bus it's unlikely to be used on any modern
platform.
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
CC: Chas Williams <3chas3@gmail.com>
CC: linux-atm-general@lists.sourceforge.net
CC: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
CC: linux-mips@vger.kernel.org
CC: arnd@arndb.de
---
arch/mips/configs/gpr_defconfig | 1 -
arch/mips/configs/mtx1_defconfig | 1 -
drivers/atm/Kconfig | 20 -
drivers/atm/Makefile | 1 -
drivers/atm/uPD98401.h | 293 ------
drivers/atm/uPD98402.c | 266 -----
drivers/atm/uPD98402.h | 107 --
drivers/atm/zatm.c | 1652 ------------------------------
drivers/atm/zatm.h | 104 --
include/uapi/linux/atm_zatm.h | 47 -
10 files changed, 2492 deletions(-)
delete mode 100644 drivers/atm/uPD98401.h
delete mode 100644 drivers/atm/uPD98402.c
delete mode 100644 drivers/atm/uPD98402.h
delete mode 100644 drivers/atm/zatm.c
delete mode 100644 drivers/atm/zatm.h
delete mode 100644 include/uapi/linux/atm_zatm.h
diff --git a/arch/mips/configs/gpr_defconfig b/arch/mips/configs/gpr_defconfig
index 7ed202db9ef0..d82f4ebf687f 100644
--- a/arch/mips/configs/gpr_defconfig
+++ b/arch/mips/configs/gpr_defconfig
@@ -178,7 +178,6 @@ CONFIG_NETCONSOLE=m
CONFIG_ATM_TCP=m
CONFIG_ATM_LANAI=m
CONFIG_ATM_ENI=m
-CONFIG_ATM_ZATM=m
CONFIG_ATM_NICSTAR=m
CONFIG_ATM_IDT77252=m
CONFIG_ATM_IA=m
diff --git a/arch/mips/configs/mtx1_defconfig b/arch/mips/configs/mtx1_defconfig
index f46ad2e294fa..0cb4d9aa14d1 100644
--- a/arch/mips/configs/mtx1_defconfig
+++ b/arch/mips/configs/mtx1_defconfig
@@ -255,7 +255,6 @@ CONFIG_ARCNET_COM20020_CS=m
CONFIG_ATM_TCP=m
CONFIG_ATM_LANAI=m
CONFIG_ATM_ENI=m
-CONFIG_ATM_ZATM=m
CONFIG_ATM_NICSTAR=m
CONFIG_ATM_IDT77252=m
CONFIG_ATM_IA=m
diff --git a/drivers/atm/Kconfig b/drivers/atm/Kconfig
index 9c778308722a..63cdb46a3439 100644
--- a/drivers/atm/Kconfig
+++ b/drivers/atm/Kconfig
@@ -146,26 +146,6 @@ config ATM_ENI_BURST_RX_2W
try this if you have disabled 4W and 8W bursts. Enabling 2W if 4W or
8W are also set may or may not improve throughput.
-config ATM_ZATM
- tristate "ZeitNet ZN1221/ZN1225"
- depends on PCI && VIRT_TO_BUS
- help
- Driver for the ZeitNet ZN1221 (MMF) and ZN1225 (UTP-5) 155 Mbps ATM
- adapters.
-
- To compile this driver as a module, choose M here: the module will
- be called zatm.
-
-config ATM_ZATM_DEBUG
- bool "Enable extended debugging"
- depends on ATM_ZATM
- help
- Extended debugging records various events and displays that list
- when an inconsistency is detected. This mechanism is faster than
- generally using printks, but still has some impact on performance.
- Note that extended debugging may create certain race conditions
- itself. Enable this ONLY if you suspect problems with the driver.
-
config ATM_NICSTAR
tristate "IDT 77201 (NICStAR) (ForeRunnerLE)"
depends on PCI
diff --git a/drivers/atm/Makefile b/drivers/atm/Makefile
index 1b6a8ddaf007..c9eade92019b 100644
--- a/drivers/atm/Makefile
+++ b/drivers/atm/Makefile
@@ -5,7 +5,6 @@
fore_200e-y := fore200e.o
-obj-$(CONFIG_ATM_ZATM) += zatm.o uPD98402.o
obj-$(CONFIG_ATM_NICSTAR) += nicstar.o
obj-$(CONFIG_ATM_IA) += iphase.o suni.o
obj-$(CONFIG_ATM_FORE200E) += fore_200e.o
diff --git a/drivers/atm/uPD98401.h b/drivers/atm/uPD98401.h
deleted file mode 100644
index f766a5ef0c5d..000000000000
--- a/drivers/atm/uPD98401.h
+++ /dev/null
@@ -1,293 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/* drivers/atm/uPD98401.h - NEC uPD98401 (SAR) declarations */
-
-/* Written 1995 by Werner Almesberger, EPFL LRC */
-
-
-#ifndef DRIVERS_ATM_uPD98401_H
-#define DRIVERS_ATM_uPD98401_H
-
-
-#define MAX_CRAM_SIZE (1 << 18) /* 2^18 words */
-#define RAM_INCREMENT 1024 /* check in 4 kB increments */
-
-#define uPD98401_PORTS 0x24 /* probably more ? */
-
-
-/*
- * Commands
- */
-
-#define uPD98401_OPEN_CHAN 0x20000000 /* open channel */
-#define uPD98401_CHAN_ADDR 0x0003fff8 /* channel address */
-#define uPD98401_CHAN_ADDR_SHIFT 3
-#define uPD98401_CLOSE_CHAN 0x24000000 /* close channel */
-#define uPD98401_CHAN_RT 0x02000000 /* RX/TX (0 TX, 1 RX) */
-#define uPD98401_DEACT_CHAN 0x28000000 /* deactivate channel */
-#define uPD98401_TX_READY 0x30000000 /* TX ready */
-#define uPD98401_ADD_BAT 0x34000000 /* add batches */
-#define uPD98401_POOL 0x000f0000 /* pool number */
-#define uPD98401_POOL_SHIFT 16
-#define uPD98401_POOL_NUMBAT 0x0000ffff /* number of batches */
-#define uPD98401_NOP 0x3f000000 /* NOP */
-#define uPD98401_IND_ACC 0x00000000 /* Indirect Access */
-#define uPD98401_IA_RW 0x10000000 /* Read/Write (0 W, 1 R) */
-#define uPD98401_IA_B3 0x08000000 /* Byte select, 1 enable */
-#define uPD98401_IA_B2 0x04000000
-#define uPD98401_IA_B1 0x02000000
-#define uPD98401_IA_B0 0x01000000
-#define uPD98401_IA_BALL 0x0f000000 /* whole longword */
-#define uPD98401_IA_TGT 0x000c0000 /* Target */
-#define uPD98401_IA_TGT_SHIFT 18
-#define uPD98401_IA_TGT_CM 0 /* - Control Memory */
-#define uPD98401_IA_TGT_SAR 1 /* - uPD98401 registers */
-#define uPD98401_IA_TGT_PHY 3 /* - PHY device */
-#define uPD98401_IA_ADDR 0x0003ffff
-
-/*
- * Command Register Status
- */
-
-#define uPD98401_BUSY 0x80000000 /* SAR is busy */
-#define uPD98401_LOCKED 0x40000000 /* SAR is locked by other CPU */
-
-/*
- * Indications
- */
-
-/* Normal (AAL5) Receive Indication */
-#define uPD98401_AAL5_UINFO 0xffff0000 /* user-supplied information */
-#define uPD98401_AAL5_UINFO_SHIFT 16
-#define uPD98401_AAL5_SIZE 0x0000ffff /* PDU size (in _CELLS_ !!) */
-#define uPD98401_AAL5_CHAN 0x7fff0000 /* Channel number */
-#define uPD98401_AAL5_CHAN_SHIFT 16
-#define uPD98401_AAL5_ERR 0x00008000 /* Error indication */
-#define uPD98401_AAL5_CI 0x00004000 /* Congestion Indication */
-#define uPD98401_AAL5_CLP 0x00002000 /* CLP (>= 1 cell had CLP=1) */
-#define uPD98401_AAL5_ES 0x00000f00 /* Error Status */
-#define uPD98401_AAL5_ES_SHIFT 8
-#define uPD98401_AAL5_ES_NONE 0 /* No error */
-#define uPD98401_AAL5_ES_FREE 1 /* Receiver free buf underflow */
-#define uPD98401_AAL5_ES_FIFO 2 /* Receiver FIFO overrun */
-#define uPD98401_AAL5_ES_TOOBIG 3 /* Maximum length violation */
-#define uPD98401_AAL5_ES_CRC 4 /* CRC error */
-#define uPD98401_AAL5_ES_ABORT 5 /* User abort */
-#define uPD98401_AAL5_ES_LENGTH 6 /* Length violation */
-#define uPD98401_AAL5_ES_T1 7 /* T1 error (timeout) */
-#define uPD98401_AAL5_ES_DEACT 8 /* Deactivated with DEACT_CHAN */
-#define uPD98401_AAL5_POOL 0x0000001f /* Free buffer pool number */
-
-/* Raw Cell Indication */
-#define uPD98401_RAW_UINFO uPD98401_AAL5_UINFO
-#define uPD98401_RAW_UINFO_SHIFT uPD98401_AAL5_UINFO_SHIFT
-#define uPD98401_RAW_HEC 0x000000ff /* HEC */
-#define uPD98401_RAW_CHAN uPD98401_AAL5_CHAN
-#define uPD98401_RAW_CHAN_SHIFT uPD98401_AAL5_CHAN_SHIFT
-
-/* Transmit Indication */
-#define uPD98401_TXI_CONN 0x7fff0000 /* Connection Number */
-#define uPD98401_TXI_CONN_SHIFT 16
-#define uPD98401_TXI_ACTIVE 0x00008000 /* Channel remains active */
-#define uPD98401_TXI_PQP 0x00007fff /* Packet Queue Pointer */
-
-/*
- * Directly Addressable Registers
- */
-
-#define uPD98401_GMR 0x00 /* General Mode Register */
-#define uPD98401_GSR 0x01 /* General Status Register */
-#define uPD98401_IMR 0x02 /* Interrupt Mask Register */
-#define uPD98401_RQU 0x03 /* Receive Queue Underrun */
-#define uPD98401_RQA 0x04 /* Receive Queue Alert */
-#define uPD98401_ADDR 0x05 /* Last Burst Address */
-#define uPD98401_VER 0x06 /* Version Number */
-#define uPD98401_SWR 0x07 /* Software Reset */
-#define uPD98401_CMR 0x08 /* Command Register */
-#define uPD98401_CMR_L 0x09 /* Command Register and Lock/Unlock */
-#define uPD98401_CER 0x0a /* Command Extension Register */
-#define uPD98401_CER_L 0x0b /* Command Ext Reg and Lock/Unlock */
-
-#define uPD98401_MSH(n) (0x10+(n)) /* Mailbox n Start Address High */
-#define uPD98401_MSL(n) (0x14+(n)) /* Mailbox n Start Address High */
-#define uPD98401_MBA(n) (0x18+(n)) /* Mailbox n Bottom Address */
-#define uPD98401_MTA(n) (0x1c+(n)) /* Mailbox n Tail Address */
-#define uPD98401_MWA(n) (0x20+(n)) /* Mailbox n Write Address */
-
-/* GMR is at 0x00 */
-#define uPD98401_GMR_ONE 0x80000000 /* Must be set to one */
-#define uPD98401_GMR_SLM 0x40000000 /* Address mode (0 word, 1 byte) */
-#define uPD98401_GMR_CPE 0x00008000 /* Control Memory Parity Enable */
-#define uPD98401_GMR_LP 0x00004000 /* Loopback */
-#define uPD98401_GMR_WA 0x00002000 /* Early Bus Write Abort/RDY */
-#define uPD98401_GMR_RA 0x00001000 /* Early Read Abort/RDY */
-#define uPD98401_GMR_SZ 0x00000f00 /* Burst Size Enable */
-#define uPD98401_BURST16 0x00000800 /* 16-word burst */
-#define uPD98401_BURST8 0x00000400 /* 8-word burst */
-#define uPD98401_BURST4 0x00000200 /* 4-word burst */
-#define uPD98401_BURST2 0x00000100 /* 2-word burst */
-#define uPD98401_GMR_AD 0x00000080 /* Address (burst resolution) Disable */
-#define uPD98401_GMR_BO 0x00000040 /* Byte Order (0 little, 1 big) */
-#define uPD98401_GMR_PM 0x00000020 /* Bus Parity Mode (0 byte, 1 word)*/
-#define uPD98401_GMR_PC 0x00000010 /* Bus Parity Control (0even,1odd) */
-#define uPD98401_GMR_BPE 0x00000008 /* Bus Parity Enable */
-#define uPD98401_GMR_DR 0x00000004 /* Receive Drop Mode (0drop,1don't)*/
-#define uPD98401_GMR_SE 0x00000002 /* Shapers Enable */
-#define uPD98401_GMR_RE 0x00000001 /* Receiver Enable */
-
-/* GSR is at 0x01, IMR is at 0x02 */
-#define uPD98401_INT_PI 0x80000000 /* PHY interrupt */
-#define uPD98401_INT_RQA 0x40000000 /* Receive Queue Alert */
-#define uPD98401_INT_RQU 0x20000000 /* Receive Queue Underrun */
-#define uPD98401_INT_RD 0x10000000 /* Receiver Deactivated */
-#define uPD98401_INT_SPE 0x08000000 /* System Parity Error */
-#define uPD98401_INT_CPE 0x04000000 /* Control Memory Parity Error */
-#define uPD98401_INT_SBE 0x02000000 /* System Bus Error */
-#define uPD98401_INT_IND 0x01000000 /* Initialization Done */
-#define uPD98401_INT_RCR 0x0000ff00 /* Raw Cell Received */
-#define uPD98401_INT_RCR_SHIFT 8
-#define uPD98401_INT_MF 0x000000f0 /* Mailbox Full */
-#define uPD98401_INT_MF_SHIFT 4
-#define uPD98401_INT_MM 0x0000000f /* Mailbox Modified */
-
-/* VER is at 0x06 */
-#define uPD98401_MAJOR 0x0000ff00 /* Major revision */
-#define uPD98401_MAJOR_SHIFT 8
-#define uPD98401_MINOR 0x000000ff /* Minor revision */
-
-/*
- * Indirectly Addressable Registers
- */
-
-#define uPD98401_IM(n) (0x40000+(n)) /* Scheduler n I and M */
-#define uPD98401_X(n) (0x40010+(n)) /* Scheduler n X */
-#define uPD98401_Y(n) (0x40020+(n)) /* Scheduler n Y */
-#define uPD98401_PC(n) (0x40030+(n)) /* Scheduler n P, C, p and c */
-#define uPD98401_PS(n) (0x40040+(n)) /* Scheduler n priority and status */
-
-/* IM contents */
-#define uPD98401_IM_I 0xff000000 /* I */
-#define uPD98401_IM_I_SHIFT 24
-#define uPD98401_IM_M 0x00ffffff /* M */
-
-/* PC contents */
-#define uPD98401_PC_P 0xff000000 /* P */
-#define uPD98401_PC_P_SHIFT 24
-#define uPD98401_PC_C 0x00ff0000 /* C */
-#define uPD98401_PC_C_SHIFT 16
-#define uPD98401_PC_p 0x0000ff00 /* p */
-#define uPD98401_PC_p_SHIFT 8
-#define uPD98401_PC_c 0x000000ff /* c */
-
-/* PS contents */
-#define uPD98401_PS_PRIO 0xf0 /* Priority level (0 high, 15 low) */
-#define uPD98401_PS_PRIO_SHIFT 4
-#define uPD98401_PS_S 0x08 /* Scan - must be 0 (internal) */
-#define uPD98401_PS_R 0x04 /* Round Robin (internal) */
-#define uPD98401_PS_A 0x02 /* Active (internal) */
-#define uPD98401_PS_E 0x01 /* Enabled */
-
-#define uPD98401_TOS 0x40100 /* Top of Stack Control Memory Address */
-#define uPD98401_SMA 0x40200 /* Shapers Control Memory Start Address */
-#define uPD98401_PMA 0x40201 /* Receive Pool Control Memory Start Address */
-#define uPD98401_T1R 0x40300 /* T1 Register */
-#define uPD98401_VRR 0x40301 /* VPI/VCI Reduction Register/Recv. Shutdown */
-#define uPD98401_TSR 0x40302 /* Time-Stamp Register */
-
-/* VRR is at 0x40301 */
-#define uPD98401_VRR_SDM 0x80000000 /* Shutdown Mode */
-#define uPD98401_VRR_SHIFT 0x000f0000 /* VPI/VCI Shift */
-#define uPD98401_VRR_SHIFT_SHIFT 16
-#define uPD98401_VRR_MASK 0x0000ffff /* VPI/VCI mask */
-
-/*
- * TX packet descriptor
- */
-
-#define uPD98401_TXPD_SIZE 16 /* descriptor size (in bytes) */
-
-#define uPD98401_TXPD_V 0x80000000 /* Valid bit */
-#define uPD98401_TXPD_DP 0x40000000 /* Descriptor (1) or Pointer (0) */
-#define uPD98401_TXPD_SM 0x20000000 /* Single (1) or Multiple (0) */
-#define uPD98401_TXPD_CLPM 0x18000000 /* CLP mode */
-#define uPD98401_CLPM_0 0 /* 00 CLP = 0 */
-#define uPD98401_CLPM_1 3 /* 11 CLP = 1 */
-#define uPD98401_CLPM_LAST 1 /* 01 CLP unless last cell */
-#define uPD98401_TXPD_CLPM_SHIFT 27
-#define uPD98401_TXPD_PTI 0x07000000 /* PTI pattern */
-#define uPD98401_TXPD_PTI_SHIFT 24
-#define uPD98401_TXPD_GFC 0x00f00000 /* GFC pattern */
-#define uPD98401_TXPD_GFC_SHIFT 20
-#define uPD98401_TXPD_C10 0x00040000 /* insert CRC-10 */
-#define uPD98401_TXPD_AAL5 0x00020000 /* AAL5 processing */
-#define uPD98401_TXPD_MB 0x00010000 /* TX mailbox number */
-#define uPD98401_TXPD_UU 0x0000ff00 /* CPCS-UU */
-#define uPD98401_TXPD_UU_SHIFT 8
-#define uPD98401_TXPD_CPI 0x000000ff /* CPI */
-
-/*
- * TX buffer descriptor
- */
-
-#define uPD98401_TXBD_SIZE 8 /* descriptor size (in bytes) */
-
-#define uPD98401_TXBD_LAST 0x80000000 /* last buffer in packet */
-
-/*
- * TX VC table
- */
-
-/* 1st word has the same structure as in a TX packet descriptor */
-#define uPD98401_TXVC_L 0x80000000 /* last buffer */
-#define uPD98401_TXVC_SHP 0x0f000000 /* shaper number */
-#define uPD98401_TXVC_SHP_SHIFT 24
-#define uPD98401_TXVC_VPI 0x00ff0000 /* VPI */
-#define uPD98401_TXVC_VPI_SHIFT 16
-#define uPD98401_TXVC_VCI 0x0000ffff /* VCI */
-#define uPD98401_TXVC_QRP 6 /* Queue Read Pointer is in word 6 */
-
-/*
- * RX free buffer pools descriptor
- */
-
-#define uPD98401_RXFP_ALERT 0x70000000 /* low water mark */
-#define uPD98401_RXFP_ALERT_SHIFT 28
-#define uPD98401_RXFP_BFSZ 0x0f000000 /* buffer size, 64*2^n */
-#define uPD98401_RXFP_BFSZ_SHIFT 24
-#define uPD98401_RXFP_BTSZ 0x00ff0000 /* batch size, n+1 */
-#define uPD98401_RXFP_BTSZ_SHIFT 16
-#define uPD98401_RXFP_REMAIN 0x0000ffff /* remaining batches in pool */
-
-/*
- * RX VC table
- */
-
-#define uPD98401_RXVC_BTSZ 0xff000000 /* remaining free buffers in batch */
-#define uPD98401_RXVC_BTSZ_SHIFT 24
-#define uPD98401_RXVC_MB 0x00200000 /* RX mailbox number */
-#define uPD98401_RXVC_POOL 0x001f0000 /* free buffer pool number */
-#define uPD98401_RXVC_POOL_SHIFT 16
-#define uPD98401_RXVC_UINFO 0x0000ffff /* user-supplied information */
-#define uPD98401_RXVC_T1 0xffff0000 /* T1 timestamp */
-#define uPD98401_RXVC_T1_SHIFT 16
-#define uPD98401_RXVC_PR 0x00008000 /* Packet Reception, 1 if busy */
-#define uPD98401_RXVC_DR 0x00004000 /* FIFO Drop */
-#define uPD98401_RXVC_OD 0x00001000 /* Drop OAM cells */
-#define uPD98401_RXVC_AR 0x00000800 /* AAL5 or raw cell; 1 if AAL5 */
-#define uPD98401_RXVC_MAXSEG 0x000007ff /* max number of segments per PDU */
-#define uPD98401_RXVC_REM 0xfffe0000 /* remaining words in curr buffer */
-#define uPD98401_RXVC_REM_SHIFT 17
-#define uPD98401_RXVC_CLP 0x00010000 /* CLP received */
-#define uPD98401_RXVC_BFA 0x00008000 /* Buffer Assigned */
-#define uPD98401_RXVC_BTA 0x00004000 /* Batch Assigned */
-#define uPD98401_RXVC_CI 0x00002000 /* Congestion Indication */
-#define uPD98401_RXVC_DD 0x00001000 /* Dropping incoming cells */
-#define uPD98401_RXVC_DP 0x00000800 /* like PR ? */
-#define uPD98401_RXVC_CURSEG 0x000007ff /* Current Segment count */
-
-/*
- * RX lookup table
- */
-
-#define uPD98401_RXLT_ENBL 0x8000 /* Enable */
-
-#endif
diff --git a/drivers/atm/uPD98402.c b/drivers/atm/uPD98402.c
deleted file mode 100644
index 239852d85558..000000000000
--- a/drivers/atm/uPD98402.c
+++ /dev/null
@@ -1,266 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/* drivers/atm/uPD98402.c - NEC uPD98402 (PHY) declarations */
-
-/* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
-
-
-#include <linux/module.h>
-#include <linux/mm.h>
-#include <linux/errno.h>
-#include <linux/atmdev.h>
-#include <linux/sonet.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/uaccess.h>
-#include <linux/atomic.h>
-
-#include "uPD98402.h"
-
-
-#if 0
-#define DPRINTK(format,args...) printk(KERN_DEBUG format,##args)
-#else
-#define DPRINTK(format,args...)
-#endif
-
-
-struct uPD98402_priv {
- struct k_sonet_stats sonet_stats;/* link diagnostics */
- unsigned char framing; /* SONET/SDH framing */
- int loop_mode; /* loopback mode */
- spinlock_t lock;
-};
-
-
-#define PRIV(dev) ((struct uPD98402_priv *) dev->phy_data)
-
-#define PUT(val,reg) dev->ops->phy_put(dev,val,uPD98402_##reg)
-#define GET(reg) dev->ops->phy_get(dev,uPD98402_##reg)
-
-
-static int fetch_stats(struct atm_dev *dev,struct sonet_stats __user *arg,int zero)
-{
- struct sonet_stats tmp;
- int error = 0;
-
- atomic_add(GET(HECCT),&PRIV(dev)->sonet_stats.uncorr_hcs);
- sonet_copy_stats(&PRIV(dev)->sonet_stats,&tmp);
- if (arg) error = copy_to_user(arg,&tmp,sizeof(tmp));
- if (zero && !error) {
- /* unused fields are reported as -1, but we must not "adjust"
- them */
- tmp.corr_hcs = tmp.tx_cells = tmp.rx_cells = 0;
- sonet_subtract_stats(&PRIV(dev)->sonet_stats,&tmp);
- }
- return error ? -EFAULT : 0;
-}
-
-
-static int set_framing(struct atm_dev *dev,unsigned char framing)
-{
- static const unsigned char sonet[] = { 1,2,3,0 };
- static const unsigned char sdh[] = { 1,0,0,2 };
- const char *set;
- unsigned long flags;
-
- switch (framing) {
- case SONET_FRAME_SONET:
- set = sonet;
- break;
- case SONET_FRAME_SDH:
- set = sdh;
- break;
- default:
- return -EINVAL;
- }
- spin_lock_irqsave(&PRIV(dev)->lock, flags);
- PUT(set[0],C11T);
- PUT(set[1],C12T);
- PUT(set[2],C13T);
- PUT((GET(MDR) & ~uPD98402_MDR_SS_MASK) | (set[3] <<
- uPD98402_MDR_SS_SHIFT),MDR);
- spin_unlock_irqrestore(&PRIV(dev)->lock, flags);
- return 0;
-}
-
-
-static int get_sense(struct atm_dev *dev,u8 __user *arg)
-{
- unsigned long flags;
- unsigned char s[3];
-
- spin_lock_irqsave(&PRIV(dev)->lock, flags);
- s[0] = GET(C11R);
- s[1] = GET(C12R);
- s[2] = GET(C13R);
- spin_unlock_irqrestore(&PRIV(dev)->lock, flags);
- return (put_user(s[0], arg) || put_user(s[1], arg+1) ||
- put_user(s[2], arg+2) || put_user(0xff, arg+3) ||
- put_user(0xff, arg+4) || put_user(0xff, arg+5)) ? -EFAULT : 0;
-}
-
-
-static int set_loopback(struct atm_dev *dev,int mode)
-{
- unsigned char mode_reg;
-
- mode_reg = GET(MDR) & ~(uPD98402_MDR_TPLP | uPD98402_MDR_ALP |
- uPD98402_MDR_RPLP);
- switch (__ATM_LM_XTLOC(mode)) {
- case __ATM_LM_NONE:
- break;
- case __ATM_LM_PHY:
- mode_reg |= uPD98402_MDR_TPLP;
- break;
- case __ATM_LM_ATM:
- mode_reg |= uPD98402_MDR_ALP;
- break;
- default:
- return -EINVAL;
- }
- switch (__ATM_LM_XTRMT(mode)) {
- case __ATM_LM_NONE:
- break;
- case __ATM_LM_PHY:
- mode_reg |= uPD98402_MDR_RPLP;
- break;
- default:
- return -EINVAL;
- }
- PUT(mode_reg,MDR);
- PRIV(dev)->loop_mode = mode;
- return 0;
-}
-
-
-static int uPD98402_ioctl(struct atm_dev *dev,unsigned int cmd,void __user *arg)
-{
- switch (cmd) {
-
- case SONET_GETSTATZ:
- case SONET_GETSTAT:
- return fetch_stats(dev,arg, cmd == SONET_GETSTATZ);
- case SONET_SETFRAMING:
- return set_framing(dev, (int)(unsigned long)arg);
- case SONET_GETFRAMING:
- return put_user(PRIV(dev)->framing,(int __user *)arg) ?
- -EFAULT : 0;
- case SONET_GETFRSENSE:
- return get_sense(dev,arg);
- case ATM_SETLOOP:
- return set_loopback(dev, (int)(unsigned long)arg);
- case ATM_GETLOOP:
- return put_user(PRIV(dev)->loop_mode,(int __user *)arg) ?
- -EFAULT : 0;
- case ATM_QUERYLOOP:
- return put_user(ATM_LM_LOC_PHY | ATM_LM_LOC_ATM |
- ATM_LM_RMT_PHY,(int __user *)arg) ? -EFAULT : 0;
- default:
- return -ENOIOCTLCMD;
- }
-}
-
-
-#define ADD_LIMITED(s,v) \
- { atomic_add(GET(v),&PRIV(dev)->sonet_stats.s); \
- if (atomic_read(&PRIV(dev)->sonet_stats.s) < 0) \
- atomic_set(&PRIV(dev)->sonet_stats.s,INT_MAX); }
-
-
-static void stat_event(struct atm_dev *dev)
-{
- unsigned char events;
-
- events = GET(PCR);
- if (events & uPD98402_PFM_PFEB) ADD_LIMITED(path_febe,PFECB);
- if (events & uPD98402_PFM_LFEB) ADD_LIMITED(line_febe,LECCT);
- if (events & uPD98402_PFM_B3E) ADD_LIMITED(path_bip,B3ECT);
- if (events & uPD98402_PFM_B2E) ADD_LIMITED(line_bip,B2ECT);
- if (events & uPD98402_PFM_B1E) ADD_LIMITED(section_bip,B1ECT);
-}
-
-
-#undef ADD_LIMITED
-
-
-static void uPD98402_int(struct atm_dev *dev)
-{
- static unsigned long silence = 0;
- unsigned char reason;
-
- while ((reason = GET(PICR))) {
- if (reason & uPD98402_INT_LOS)
- printk(KERN_NOTICE "%s(itf %d): signal lost\n",
- dev->type,dev->number);
- if (reason & uPD98402_INT_PFM) stat_event(dev);
- if (reason & uPD98402_INT_PCO) {
- (void) GET(PCOCR); /* clear interrupt cause */
- atomic_add(GET(HECCT),
- &PRIV(dev)->sonet_stats.uncorr_hcs);
- }
- if ((reason & uPD98402_INT_RFO) &&
- (time_after(jiffies, silence) || silence == 0)) {
- printk(KERN_WARNING "%s(itf %d): uPD98402 receive "
- "FIFO overflow\n",dev->type,dev->number);
- silence = (jiffies+HZ/2)|1;
- }
- }
-}
-
-
-static int uPD98402_start(struct atm_dev *dev)
-{
- DPRINTK("phy_start\n");
- if (!(dev->phy_data = kmalloc(sizeof(struct uPD98402_priv),GFP_KERNEL)))
- return -ENOMEM;
- spin_lock_init(&PRIV(dev)->lock);
- memset(&PRIV(dev)->sonet_stats,0,sizeof(struct k_sonet_stats));
- (void) GET(PCR); /* clear performance events */
- PUT(uPD98402_PFM_FJ,PCMR); /* ignore frequency adj */
- (void) GET(PCOCR); /* clear overflows */
- PUT(~uPD98402_PCO_HECC,PCOMR);
- (void) GET(PICR); /* clear interrupts */
- PUT(~(uPD98402_INT_PFM | uPD98402_INT_ALM | uPD98402_INT_RFO |
- uPD98402_INT_LOS),PIMR); /* enable them */
- (void) fetch_stats(dev,NULL,1); /* clear kernel counters */
- atomic_set(&PRIV(dev)->sonet_stats.corr_hcs,-1);
- atomic_set(&PRIV(dev)->sonet_stats.tx_cells,-1);
- atomic_set(&PRIV(dev)->sonet_stats.rx_cells,-1);
- return 0;
-}
-
-
-static int uPD98402_stop(struct atm_dev *dev)
-{
- /* let SAR driver worry about stopping interrupts */
- kfree(PRIV(dev));
- return 0;
-}
-
-
-static const struct atmphy_ops uPD98402_ops = {
- .start = uPD98402_start,
- .ioctl = uPD98402_ioctl,
- .interrupt = uPD98402_int,
- .stop = uPD98402_stop,
-};
-
-
-int uPD98402_init(struct atm_dev *dev)
-{
-DPRINTK("phy_init\n");
- dev->phy = &uPD98402_ops;
- return 0;
-}
-
-
-MODULE_LICENSE("GPL");
-
-EXPORT_SYMBOL(uPD98402_init);
-
-static __init int uPD98402_module_init(void)
-{
- return 0;
-}
-module_init(uPD98402_module_init);
-/* module_exit not defined so not unloadable */
diff --git a/drivers/atm/uPD98402.h b/drivers/atm/uPD98402.h
deleted file mode 100644
index 437cfaa20c96..000000000000
--- a/drivers/atm/uPD98402.h
+++ /dev/null
@@ -1,107 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/* drivers/atm/uPD98402.h - NEC uPD98402 (PHY) declarations */
-
-/* Written 1995 by Werner Almesberger, EPFL LRC */
-
-
-#ifndef DRIVERS_ATM_uPD98402_H
-#define DRIVERS_ATM_uPD98402_H
-
-/*
- * Registers
- */
-
-#define uPD98402_CMR 0x00 /* Command Register */
-#define uPD98402_MDR 0x01 /* Mode Register */
-#define uPD98402_PICR 0x02 /* PHY Interrupt Cause Register */
-#define uPD98402_PIMR 0x03 /* PHY Interrupt Mask Register */
-#define uPD98402_ACR 0x04 /* Alarm Cause Register */
-#define uPD98402_ACMR 0x05 /* Alarm Cause Mask Register */
-#define uPD98402_PCR 0x06 /* Performance Cause Register */
-#define uPD98402_PCMR 0x07 /* Performance Cause Mask Register */
-#define uPD98402_IACM 0x08 /* Internal Alarm Cause Mask Register */
-#define uPD98402_B1ECT 0x09 /* B1 Error Count Register */
-#define uPD98402_B2ECT 0x0a /* B2 Error Count Register */
-#define uPD98402_B3ECT 0x0b /* B3 Error Count Regster */
-#define uPD98402_PFECB 0x0c /* Path FEBE Count Register */
-#define uPD98402_LECCT 0x0d /* Line FEBE Count Register */
-#define uPD98402_HECCT 0x0e /* HEC Error Count Register */
-#define uPD98402_FJCT 0x0f /* Frequence Justification Count Reg */
-#define uPD98402_PCOCR 0x10 /* Perf. Counter Overflow Cause Reg */
-#define uPD98402_PCOMR 0x11 /* Perf. Counter Overflow Mask Reg */
-#define uPD98402_C11T 0x20 /* C11T Data Register */
-#define uPD98402_C12T 0x21 /* C12T Data Register */
-#define uPD98402_C13T 0x22 /* C13T Data Register */
-#define uPD98402_F1T 0x23 /* F1T Data Register */
-#define uPD98402_K2T 0x25 /* K2T Data Register */
-#define uPD98402_C2T 0x26 /* C2T Data Register */
-#define uPD98402_F2T 0x27 /* F2T Data Register */
-#define uPD98402_C11R 0x30 /* C11T Data Register */
-#define uPD98402_C12R 0x31 /* C12T Data Register */
-#define uPD98402_C13R 0x32 /* C13T Data Register */
-#define uPD98402_F1R 0x33 /* F1T Data Register */
-#define uPD98402_K2R 0x35 /* K2T Data Register */
-#define uPD98402_C2R 0x36 /* C2T Data Register */
-#define uPD98402_F2R 0x37 /* F2T Data Register */
-
-/* CMR is at 0x00 */
-#define uPD98402_CMR_PFRF 0x01 /* Send path FERF */
-#define uPD98402_CMR_LFRF 0x02 /* Send line FERF */
-#define uPD98402_CMR_PAIS 0x04 /* Send path AIS */
-#define uPD98402_CMR_LAIS 0x08 /* Send line AIS */
-
-/* MDR is at 0x01 */
-#define uPD98402_MDR_ALP 0x01 /* ATM layer loopback */
-#define uPD98402_MDR_TPLP 0x02 /* PMD loopback, to host */
-#define uPD98402_MDR_RPLP 0x04 /* PMD loopback, to network */
-#define uPD98402_MDR_SS0 0x08 /* SS0 */
-#define uPD98402_MDR_SS1 0x10 /* SS1 */
-#define uPD98402_MDR_SS_MASK 0x18 /* mask */
-#define uPD98402_MDR_SS_SHIFT 3 /* shift */
-#define uPD98402_MDR_HEC 0x20 /* disable HEC inbound processing */
-#define uPD98402_MDR_FSR 0x40 /* disable frame scrambler */
-#define uPD98402_MDR_CSR 0x80 /* disable cell scrambler */
-
-/* PICR is at 0x02, PIMR is at 0x03 */
-#define uPD98402_INT_PFM 0x01 /* performance counter has changed */
-#define uPD98402_INT_ALM 0x02 /* line fault */
-#define uPD98402_INT_RFO 0x04 /* receive FIFO overflow */
-#define uPD98402_INT_PCO 0x08 /* performance counter overflow */
-#define uPD98402_INT_OTD 0x20 /* OTD has occurred */
-#define uPD98402_INT_LOS 0x40 /* Loss Of Signal */
-#define uPD98402_INT_LOF 0x80 /* Loss Of Frame */
-
-/* ACR is as 0x04, ACMR is at 0x05 */
-#define uPD98402_ALM_PFRF 0x01 /* path FERF */
-#define uPD98402_ALM_LFRF 0x02 /* line FERF */
-#define uPD98402_ALM_PAIS 0x04 /* path AIS */
-#define uPD98402_ALM_LAIS 0x08 /* line AIS */
-#define uPD98402_ALM_LOD 0x10 /* loss of delineation */
-#define uPD98402_ALM_LOP 0x20 /* loss of pointer */
-#define uPD98402_ALM_OOF 0x40 /* out of frame */
-
-/* PCR is at 0x06, PCMR is at 0x07 */
-#define uPD98402_PFM_PFEB 0x01 /* path FEBE */
-#define uPD98402_PFM_LFEB 0x02 /* line FEBE */
-#define uPD98402_PFM_B3E 0x04 /* B3 error */
-#define uPD98402_PFM_B2E 0x08 /* B2 error */
-#define uPD98402_PFM_B1E 0x10 /* B1 error */
-#define uPD98402_PFM_FJ 0x20 /* frequency justification */
-
-/* IACM is at 0x08 */
-#define uPD98402_IACM_PFRF 0x01 /* don't generate path FERF */
-#define uPD98402_IACM_LFRF 0x02 /* don't generate line FERF */
-
-/* PCOCR is at 0x010, PCOMR is at 0x11 */
-#define uPD98402_PCO_B1EC 0x01 /* B1ECT overflow */
-#define uPD98402_PCO_B2EC 0x02 /* B2ECT overflow */
-#define uPD98402_PCO_B3EC 0x04 /* B3ECT overflow */
-#define uPD98402_PCO_PFBC 0x08 /* PFEBC overflow */
-#define uPD98402_PCO_LFBC 0x10 /* LFEVC overflow */
-#define uPD98402_PCO_HECC 0x20 /* HECCT overflow */
-#define uPD98402_PCO_FJC 0x40 /* FJCT overflow */
-
-
-int uPD98402_init(struct atm_dev *dev);
-
-#endif
diff --git a/drivers/atm/zatm.c b/drivers/atm/zatm.c
deleted file mode 100644
index cf5fffcf98a1..000000000000
--- a/drivers/atm/zatm.c
+++ /dev/null
@@ -1,1652 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/* drivers/atm/zatm.c - ZeitNet ZN122x device driver */
-
-/* Written 1995-2000 by Werner Almesberger, EPFL LRC/ICA */
-
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/pci.h>
-#include <linux/errno.h>
-#include <linux/atm.h>
-#include <linux/atmdev.h>
-#include <linux/sonet.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include <linux/delay.h>
-#include <linux/uio.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/dma-mapping.h>
-#include <linux/atm_zatm.h>
-#include <linux/capability.h>
-#include <linux/bitops.h>
-#include <linux/wait.h>
-#include <linux/slab.h>
-#include <asm/byteorder.h>
-#include <asm/string.h>
-#include <asm/io.h>
-#include <linux/atomic.h>
-#include <linux/uaccess.h>
-#include <linux/nospec.h>
-
-#include "uPD98401.h"
-#include "uPD98402.h"
-#include "zeprom.h"
-#include "zatm.h"
-
-
-/*
- * TODO:
- *
- * Minor features
- * - support 64 kB SDUs (will have to use multibuffer batches then :-( )
- * - proper use of CDV, credit = max(1,CDVT*PCR)
- * - AAL0
- * - better receive timestamps
- * - OAM
- */
-
-#define ZATM_COPPER 1
-
-#if 0
-#define DPRINTK(format,args...) printk(KERN_DEBUG format,##args)
-#else
-#define DPRINTK(format,args...)
-#endif
-
-#ifndef CONFIG_ATM_ZATM_DEBUG
-
-
-#define NULLCHECK(x)
-
-#define EVENT(s,a,b)
-
-
-static void event_dump(void)
-{
-}
-
-
-#else
-
-
-/*
- * NULL pointer checking
- */
-
-#define NULLCHECK(x) \
- if ((unsigned long) (x) < 0x30) printk(KERN_CRIT #x "==0x%x\n", (int) (x))
-
-/*
- * Very extensive activity logging. Greatly improves bug detection speed but
- * costs a few Mbps if enabled.
- */
-
-#define EV 64
-
-static const char *ev[EV];
-static unsigned long ev_a[EV],ev_b[EV];
-static int ec = 0;
-
-
-static void EVENT(const char *s,unsigned long a,unsigned long b)
-{
- ev[ec] = s;
- ev_a[ec] = a;
- ev_b[ec] = b;
- ec = (ec+1) % EV;
-}
-
-
-static void event_dump(void)
-{
- int n,i;
-
- printk(KERN_NOTICE "----- event dump follows -----\n");
- for (n = 0; n < EV; n++) {
- i = (ec+n) % EV;
- printk(KERN_NOTICE);
- printk(ev[i] ? ev[i] : "(null)",ev_a[i],ev_b[i]);
- }
- printk(KERN_NOTICE "----- event dump ends here -----\n");
-}
-
-
-#endif /* CONFIG_ATM_ZATM_DEBUG */
-
-
-#define RING_BUSY 1 /* indication from do_tx that PDU has to be
- backlogged */
-
-static struct atm_dev *zatm_boards = NULL;
-static unsigned long dummy[2] = {0,0};
-
-
-#define zin_n(r) inl(zatm_dev->base+r*4)
-#define zin(r) inl(zatm_dev->base+uPD98401_##r*4)
-#define zout(v,r) outl(v,zatm_dev->base+uPD98401_##r*4)
-#define zwait() do {} while (zin(CMR) & uPD98401_BUSY)
-
-/* RX0, RX1, TX0, TX1 */
-static const int mbx_entries[NR_MBX] = { 1024,1024,1024,1024 };
-static const int mbx_esize[NR_MBX] = { 16,16,4,4 }; /* entry size in bytes */
-
-#define MBX_SIZE(i) (mbx_entries[i]*mbx_esize[i])
-
-
-/*-------------------------------- utilities --------------------------------*/
-
-
-static void zpokel(struct zatm_dev *zatm_dev,u32 value,u32 addr)
-{
- zwait();
- zout(value,CER);
- zout(uPD98401_IND_ACC | uPD98401_IA_BALL |
- (uPD98401_IA_TGT_CM << uPD98401_IA_TGT_SHIFT) | addr,CMR);
-}
-
-
-static u32 zpeekl(struct zatm_dev *zatm_dev,u32 addr)
-{
- zwait();
- zout(uPD98401_IND_ACC | uPD98401_IA_BALL | uPD98401_IA_RW |
- (uPD98401_IA_TGT_CM << uPD98401_IA_TGT_SHIFT) | addr,CMR);
- zwait();
- return zin(CER);
-}
-
-
-/*------------------------------- free lists --------------------------------*/
-
-
-/*
- * Free buffer head structure:
- * [0] pointer to buffer (for SAR)
- * [1] buffer descr link pointer (for SAR)
- * [2] back pointer to skb (for poll_rx)
- * [3] data
- * ...
- */
-
-struct rx_buffer_head {
- u32 buffer; /* pointer to buffer (for SAR) */
- u32 link; /* buffer descriptor link pointer (for SAR) */
- struct sk_buff *skb; /* back pointer to skb (for poll_rx) */
-};
-
-
-static void refill_pool(struct atm_dev *dev,int pool)
-{
- struct zatm_dev *zatm_dev;
- struct sk_buff *skb;
- struct rx_buffer_head *first;
- unsigned long flags;
- int align,offset,free,count,size;
-
- EVENT("refill_pool\n",0,0);
- zatm_dev = ZATM_DEV(dev);
- size = (64 << (pool <= ZATM_AAL5_POOL_BASE ? 0 :
- pool-ZATM_AAL5_POOL_BASE))+sizeof(struct rx_buffer_head);
- if (size < PAGE_SIZE) {
- align = 32; /* for 32 byte alignment */
- offset = sizeof(struct rx_buffer_head);
- }
- else {
- align = 4096;
- offset = zatm_dev->pool_info[pool].offset+
- sizeof(struct rx_buffer_head);
- }
- size += align;
- spin_lock_irqsave(&zatm_dev->lock, flags);
- free = zpeekl(zatm_dev,zatm_dev->pool_base+2*pool) &
- uPD98401_RXFP_REMAIN;
- spin_unlock_irqrestore(&zatm_dev->lock, flags);
- if (free >= zatm_dev->pool_info[pool].low_water) return;
- EVENT("starting ... POOL: 0x%x, 0x%x\n",
- zpeekl(zatm_dev,zatm_dev->pool_base+2*pool),
- zpeekl(zatm_dev,zatm_dev->pool_base+2*pool+1));
- EVENT("dummy: 0x%08lx, 0x%08lx\n",dummy[0],dummy[1]);
- count = 0;
- first = NULL;
- while (free < zatm_dev->pool_info[pool].high_water) {
- struct rx_buffer_head *head;
-
- skb = alloc_skb(size,GFP_ATOMIC);
- if (!skb) {
- printk(KERN_WARNING DEV_LABEL "(Itf %d): got no new "
- "skb (%d) with %d free\n",dev->number,size,free);
- break;
- }
- skb_reserve(skb,(unsigned char *) ((((unsigned long) skb->data+
- align+offset-1) & ~(unsigned long) (align-1))-offset)-
- skb->data);
- head = (struct rx_buffer_head *) skb->data;
- skb_reserve(skb,sizeof(struct rx_buffer_head));
- if (!first) first = head;
- count++;
- head->buffer = virt_to_bus(skb->data);
- head->link = 0;
- head->skb = skb;
- EVENT("enq skb 0x%08lx/0x%08lx\n",(unsigned long) skb,
- (unsigned long) head);
- spin_lock_irqsave(&zatm_dev->lock, flags);
- if (zatm_dev->last_free[pool])
- ((struct rx_buffer_head *) (zatm_dev->last_free[pool]->
- data))[-1].link = virt_to_bus(head);
- zatm_dev->last_free[pool] = skb;
- skb_queue_tail(&zatm_dev->pool[pool],skb);
- spin_unlock_irqrestore(&zatm_dev->lock, flags);
- free++;
- }
- if (first) {
- spin_lock_irqsave(&zatm_dev->lock, flags);
- zwait();
- zout(virt_to_bus(first),CER);
- zout(uPD98401_ADD_BAT | (pool << uPD98401_POOL_SHIFT) | count,
- CMR);
- spin_unlock_irqrestore(&zatm_dev->lock, flags);
- EVENT ("POOL: 0x%x, 0x%x\n",
- zpeekl(zatm_dev,zatm_dev->pool_base+2*pool),
- zpeekl(zatm_dev,zatm_dev->pool_base+2*pool+1));
- EVENT("dummy: 0x%08lx, 0x%08lx\n",dummy[0],dummy[1]);
- }
-}
-
-
-static void drain_free(struct atm_dev *dev,int pool)
-{
- skb_queue_purge(&ZATM_DEV(dev)->pool[pool]);
-}
-
-
-static int pool_index(int max_pdu)
-{
- int i;
-
- if (max_pdu % ATM_CELL_PAYLOAD)
- printk(KERN_ERR DEV_LABEL ": driver error in pool_index: "
- "max_pdu is %d\n",max_pdu);
- if (max_pdu > 65536) return -1;
- for (i = 0; (64 << i) < max_pdu; i++);
- return i+ZATM_AAL5_POOL_BASE;
-}
-
-
-/* use_pool isn't reentrant */
-
-
-static void use_pool(struct atm_dev *dev,int pool)
-{
- struct zatm_dev *zatm_dev;
- unsigned long flags;
- int size;
-
- zatm_dev = ZATM_DEV(dev);
- if (!(zatm_dev->pool_info[pool].ref_count++)) {
- skb_queue_head_init(&zatm_dev->pool[pool]);
- size = pool-ZATM_AAL5_POOL_BASE;
- if (size < 0) size = 0; /* 64B... */
- else if (size > 10) size = 10; /* ... 64kB */
- spin_lock_irqsave(&zatm_dev->lock, flags);
- zpokel(zatm_dev,((zatm_dev->pool_info[pool].low_water/4) <<
- uPD98401_RXFP_ALERT_SHIFT) |
- (1 << uPD98401_RXFP_BTSZ_SHIFT) |
- (size << uPD98401_RXFP_BFSZ_SHIFT),
- zatm_dev->pool_base+pool*2);
- zpokel(zatm_dev,(unsigned long) dummy,zatm_dev->pool_base+
- pool*2+1);
- spin_unlock_irqrestore(&zatm_dev->lock, flags);
- zatm_dev->last_free[pool] = NULL;
- refill_pool(dev,pool);
- }
- DPRINTK("pool %d: %d\n",pool,zatm_dev->pool_info[pool].ref_count);
-}
-
-
-static void unuse_pool(struct atm_dev *dev,int pool)
-{
- if (!(--ZATM_DEV(dev)->pool_info[pool].ref_count))
- drain_free(dev,pool);
-}
-
-/*----------------------------------- RX ------------------------------------*/
-
-
-#if 0
-static void exception(struct atm_vcc *vcc)
-{
- static int count = 0;
- struct zatm_dev *zatm_dev = ZATM_DEV(vcc->dev);
- struct zatm_vcc *zatm_vcc = ZATM_VCC(vcc);
- unsigned long *qrp;
- int i;
-
- if (count++ > 2) return;
- for (i = 0; i < 8; i++)
- printk("TX%d: 0x%08lx\n",i,
- zpeekl(zatm_dev,zatm_vcc->tx_chan*VC_SIZE/4+i));
- for (i = 0; i < 5; i++)
- printk("SH%d: 0x%08lx\n",i,
- zpeekl(zatm_dev,uPD98401_IM(zatm_vcc->shaper)+16*i));
- qrp = (unsigned long *) zpeekl(zatm_dev,zatm_vcc->tx_chan*VC_SIZE/4+
- uPD98401_TXVC_QRP);
- printk("qrp=0x%08lx\n",(unsigned long) qrp);
- for (i = 0; i < 4; i++) printk("QRP[%d]: 0x%08lx",i,qrp[i]);
-}
-#endif
-
-
-static const char *err_txt[] = {
- "No error",
- "RX buf underflow",
- "RX FIFO overrun",
- "Maximum len violation",
- "CRC error",
- "User abort",
- "Length violation",
- "T1 error",
- "Deactivated",
- "???",
- "???",
- "???",
- "???",
- "???",
- "???",
- "???"
-};
-
-
-static void poll_rx(struct atm_dev *dev,int mbx)
-{
- struct zatm_dev *zatm_dev;
- unsigned long pos;
- u32 x;
- int error;
-
- EVENT("poll_rx\n",0,0);
- zatm_dev = ZATM_DEV(dev);
- pos = (zatm_dev->mbx_start[mbx] & ~0xffffUL) | zin(MTA(mbx));
- while (x = zin(MWA(mbx)), (pos & 0xffff) != x) {
- u32 *here;
- struct sk_buff *skb;
- struct atm_vcc *vcc;
- int cells,size,chan;
-
- EVENT("MBX: host 0x%lx, nic 0x%x\n",pos,x);
- here = (u32 *) pos;
- if (((pos += 16) & 0xffff) == zatm_dev->mbx_end[mbx])
- pos = zatm_dev->mbx_start[mbx];
- cells = here[0] & uPD98401_AAL5_SIZE;
-#if 0
-printk("RX IND: 0x%x, 0x%x, 0x%x, 0x%x\n",here[0],here[1],here[2],here[3]);
-{
-unsigned long *x;
- printk("POOL: 0x%08x, 0x%08x\n",zpeekl(zatm_dev,
- zatm_dev->pool_base),
- zpeekl(zatm_dev,zatm_dev->pool_base+1));
- x = (unsigned long *) here[2];
- printk("[0..3] = 0x%08lx, 0x%08lx, 0x%08lx, 0x%08lx\n",
- x[0],x[1],x[2],x[3]);
-}
-#endif
- error = 0;
- if (here[3] & uPD98401_AAL5_ERR) {
- error = (here[3] & uPD98401_AAL5_ES) >>
- uPD98401_AAL5_ES_SHIFT;
- if (error == uPD98401_AAL5_ES_DEACT ||
- error == uPD98401_AAL5_ES_FREE) continue;
- }
-EVENT("error code 0x%x/0x%x\n",(here[3] & uPD98401_AAL5_ES) >>
- uPD98401_AAL5_ES_SHIFT,error);
- skb = ((struct rx_buffer_head *) bus_to_virt(here[2]))->skb;
- __net_timestamp(skb);
-#if 0
-printk("[-3..0] 0x%08lx 0x%08lx 0x%08lx 0x%08lx\n",((unsigned *) skb->data)[-3],
- ((unsigned *) skb->data)[-2],((unsigned *) skb->data)[-1],
- ((unsigned *) skb->data)[0]);
-#endif
- EVENT("skb 0x%lx, here 0x%lx\n",(unsigned long) skb,
- (unsigned long) here);
-#if 0
-printk("dummy: 0x%08lx, 0x%08lx\n",dummy[0],dummy[1]);
-#endif
- size = error ? 0 : ntohs(((__be16 *) skb->data)[cells*
- ATM_CELL_PAYLOAD/sizeof(u16)-3]);
- EVENT("got skb 0x%lx, size %d\n",(unsigned long) skb,size);
- chan = (here[3] & uPD98401_AAL5_CHAN) >>
- uPD98401_AAL5_CHAN_SHIFT;
- if (chan < zatm_dev->chans && zatm_dev->rx_map[chan]) {
- int pos;
- vcc = zatm_dev->rx_map[chan];
- pos = ZATM_VCC(vcc)->pool;
- if (skb == zatm_dev->last_free[pos])
- zatm_dev->last_free[pos] = NULL;
- skb_unlink(skb, zatm_dev->pool + pos);
- }
- else {
- printk(KERN_ERR DEV_LABEL "(itf %d): RX indication "
- "for non-existing channel\n",dev->number);
- size = 0;
- vcc = NULL;
- event_dump();
- }
- if (error) {
- static unsigned long silence = 0;
- static int last_error = 0;
-
- if (error != last_error ||
- time_after(jiffies, silence) || silence == 0){
- printk(KERN_WARNING DEV_LABEL "(itf %d): "
- "chan %d error %s\n",dev->number,chan,
- err_txt[error]);
- last_error = error;
- silence = (jiffies+2*HZ)|1;
- }
- size = 0;
- }
- if (size && (size > cells*ATM_CELL_PAYLOAD-ATM_AAL5_TRAILER ||
- size <= (cells-1)*ATM_CELL_PAYLOAD-ATM_AAL5_TRAILER)) {
- printk(KERN_ERR DEV_LABEL "(itf %d): size %d with %d "
- "cells\n",dev->number,size,cells);
- size = 0;
- event_dump();
- }
- if (size > ATM_MAX_AAL5_PDU) {
- printk(KERN_ERR DEV_LABEL "(itf %d): size too big "
- "(%d)\n",dev->number,size);
- size = 0;
- event_dump();
- }
- if (!size) {
- dev_kfree_skb_irq(skb);
- if (vcc) atomic_inc(&vcc->stats->rx_err);
- continue;
- }
- if (!atm_charge(vcc,skb->truesize)) {
- dev_kfree_skb_irq(skb);
- continue;
- }
- skb->len = size;
- ATM_SKB(skb)->vcc = vcc;
- vcc->push(vcc,skb);
- atomic_inc(&vcc->stats->rx);
- }
- zout(pos & 0xffff,MTA(mbx));
-#if 0 /* probably a stupid idea */
- refill_pool(dev,zatm_vcc->pool);
- /* maybe this saves us a few interrupts */
-#endif
-}
-
-
-static int open_rx_first(struct atm_vcc *vcc)
-{
- struct zatm_dev *zatm_dev;
- struct zatm_vcc *zatm_vcc;
- unsigned long flags;
- unsigned short chan;
- int cells;
-
- DPRINTK("open_rx_first (0x%x)\n",inb_p(0xc053));
- zatm_dev = ZATM_DEV(vcc->dev);
- zatm_vcc = ZATM_VCC(vcc);
- zatm_vcc->rx_chan = 0;
- if (vcc->qos.rxtp.traffic_class == ATM_NONE) return 0;
- if (vcc->qos.aal == ATM_AAL5) {
- if (vcc->qos.rxtp.max_sdu > 65464)
- vcc->qos.rxtp.max_sdu = 65464;
- /* fix this - we may want to receive 64kB SDUs
- later */
- cells = DIV_ROUND_UP(vcc->qos.rxtp.max_sdu + ATM_AAL5_TRAILER,
- ATM_CELL_PAYLOAD);
- zatm_vcc->pool = pool_index(cells*ATM_CELL_PAYLOAD);
- }
- else {
- cells = 1;
- zatm_vcc->pool = ZATM_AAL0_POOL;
- }
- if (zatm_vcc->pool < 0) return -EMSGSIZE;
- spin_lock_irqsave(&zatm_dev->lock, flags);
- zwait();
- zout(uPD98401_OPEN_CHAN,CMR);
- zwait();
- DPRINTK("0x%x 0x%x\n",zin(CMR),zin(CER));
- chan = (zin(CMR) & uPD98401_CHAN_ADDR) >> uPD98401_CHAN_ADDR_SHIFT;
- spin_unlock_irqrestore(&zatm_dev->lock, flags);
- DPRINTK("chan is %d\n",chan);
- if (!chan) return -EAGAIN;
- use_pool(vcc->dev,zatm_vcc->pool);
- DPRINTK("pool %d\n",zatm_vcc->pool);
- /* set up VC descriptor */
- spin_lock_irqsave(&zatm_dev->lock, flags);
- zpokel(zatm_dev,zatm_vcc->pool << uPD98401_RXVC_POOL_SHIFT,
- chan*VC_SIZE/4);
- zpokel(zatm_dev,uPD98401_RXVC_OD | (vcc->qos.aal == ATM_AAL5 ?
- uPD98401_RXVC_AR : 0) | cells,chan*VC_SIZE/4+1);
- zpokel(zatm_dev,0,chan*VC_SIZE/4+2);
- zatm_vcc->rx_chan = chan;
- zatm_dev->rx_map[chan] = vcc;
- spin_unlock_irqrestore(&zatm_dev->lock, flags);
- return 0;
-}
-
-
-static int open_rx_second(struct atm_vcc *vcc)
-{
- struct zatm_dev *zatm_dev;
- struct zatm_vcc *zatm_vcc;
- unsigned long flags;
- int pos,shift;
-
- DPRINTK("open_rx_second (0x%x)\n",inb_p(0xc053));
- zatm_dev = ZATM_DEV(vcc->dev);
- zatm_vcc = ZATM_VCC(vcc);
- if (!zatm_vcc->rx_chan) return 0;
- spin_lock_irqsave(&zatm_dev->lock, flags);
- /* should also handle VPI @@@ */
- pos = vcc->vci >> 1;
- shift = (1-(vcc->vci & 1)) << 4;
- zpokel(zatm_dev,(zpeekl(zatm_dev,pos) & ~(0xffff << shift)) |
- ((zatm_vcc->rx_chan | uPD98401_RXLT_ENBL) << shift),pos);
- spin_unlock_irqrestore(&zatm_dev->lock, flags);
- return 0;
-}
-
-
-static void close_rx(struct atm_vcc *vcc)
-{
- struct zatm_dev *zatm_dev;
- struct zatm_vcc *zatm_vcc;
- unsigned long flags;
- int pos,shift;
-
- zatm_vcc = ZATM_VCC(vcc);
- zatm_dev = ZATM_DEV(vcc->dev);
- if (!zatm_vcc->rx_chan) return;
- DPRINTK("close_rx\n");
- /* disable receiver */
- if (vcc->vpi != ATM_VPI_UNSPEC && vcc->vci != ATM_VCI_UNSPEC) {
- spin_lock_irqsave(&zatm_dev->lock, flags);
- pos = vcc->vci >> 1;
- shift = (1-(vcc->vci & 1)) << 4;
- zpokel(zatm_dev,zpeekl(zatm_dev,pos) & ~(0xffff << shift),pos);
- zwait();
- zout(uPD98401_NOP,CMR);
- zwait();
- zout(uPD98401_NOP,CMR);
- spin_unlock_irqrestore(&zatm_dev->lock, flags);
- }
- spin_lock_irqsave(&zatm_dev->lock, flags);
- zwait();
- zout(uPD98401_DEACT_CHAN | uPD98401_CHAN_RT | (zatm_vcc->rx_chan <<
- uPD98401_CHAN_ADDR_SHIFT),CMR);
- zwait();
- udelay(10); /* why oh why ... ? */
- zout(uPD98401_CLOSE_CHAN | uPD98401_CHAN_RT | (zatm_vcc->rx_chan <<
- uPD98401_CHAN_ADDR_SHIFT),CMR);
- zwait();
- if (!(zin(CMR) & uPD98401_CHAN_ADDR))
- printk(KERN_CRIT DEV_LABEL "(itf %d): can't close RX channel "
- "%d\n",vcc->dev->number,zatm_vcc->rx_chan);
- spin_unlock_irqrestore(&zatm_dev->lock, flags);
- zatm_dev->rx_map[zatm_vcc->rx_chan] = NULL;
- zatm_vcc->rx_chan = 0;
- unuse_pool(vcc->dev,zatm_vcc->pool);
-}
-
-
-static int start_rx(struct atm_dev *dev)
-{
- struct zatm_dev *zatm_dev;
- int i;
-
- DPRINTK("start_rx\n");
- zatm_dev = ZATM_DEV(dev);
- zatm_dev->rx_map = kcalloc(zatm_dev->chans,
- sizeof(*zatm_dev->rx_map),
- GFP_KERNEL);
- if (!zatm_dev->rx_map) return -ENOMEM;
- /* set VPI/VCI split (use all VCIs and give what's left to VPIs) */
- zpokel(zatm_dev,(1 << dev->ci_range.vci_bits)-1,uPD98401_VRR);
- /* prepare free buffer pools */
- for (i = 0; i <= ZATM_LAST_POOL; i++) {
- zatm_dev->pool_info[i].ref_count = 0;
- zatm_dev->pool_info[i].rqa_count = 0;
- zatm_dev->pool_info[i].rqu_count = 0;
- zatm_dev->pool_info[i].low_water = LOW_MARK;
- zatm_dev->pool_info[i].high_water = HIGH_MARK;
- zatm_dev->pool_info[i].offset = 0;
- zatm_dev->pool_info[i].next_off = 0;
- zatm_dev->pool_info[i].next_cnt = 0;
- zatm_dev->pool_info[i].next_thres = OFF_CNG_THRES;
- }
- return 0;
-}
-
-
-/*----------------------------------- TX ------------------------------------*/
-
-
-static int do_tx(struct sk_buff *skb)
-{
- struct atm_vcc *vcc;
- struct zatm_dev *zatm_dev;
- struct zatm_vcc *zatm_vcc;
- u32 *dsc;
- unsigned long flags;
-
- EVENT("do_tx\n",0,0);
- DPRINTK("sending skb %p\n",skb);
- vcc = ATM_SKB(skb)->vcc;
- zatm_dev = ZATM_DEV(vcc->dev);
- zatm_vcc = ZATM_VCC(vcc);
- EVENT("iovcnt=%d\n",skb_shinfo(skb)->nr_frags,0);
- spin_lock_irqsave(&zatm_dev->lock, flags);
- if (!skb_shinfo(skb)->nr_frags) {
- if (zatm_vcc->txing == RING_ENTRIES-1) {
- spin_unlock_irqrestore(&zatm_dev->lock, flags);
- return RING_BUSY;
- }
- zatm_vcc->txing++;
- dsc = zatm_vcc->ring+zatm_vcc->ring_curr;
- zatm_vcc->ring_curr = (zatm_vcc->ring_curr+RING_WORDS) &
- (RING_ENTRIES*RING_WORDS-1);
- dsc[1] = 0;
- dsc[2] = skb->len;
- dsc[3] = virt_to_bus(skb->data);
- mb();
- dsc[0] = uPD98401_TXPD_V | uPD98401_TXPD_DP | uPD98401_TXPD_SM
- | (vcc->qos.aal == ATM_AAL5 ? uPD98401_TXPD_AAL5 : 0 |
- (ATM_SKB(skb)->atm_options & ATM_ATMOPT_CLP ?
- uPD98401_CLPM_1 : uPD98401_CLPM_0));
- EVENT("dsc (0x%lx)\n",(unsigned long) dsc,0);
- }
- else {
-printk("NONONONOO!!!!\n");
- dsc = NULL;
-#if 0
- u32 *put;
- int i;
-
- dsc = kmalloc(uPD98401_TXPD_SIZE * 2 +
- uPD98401_TXBD_SIZE * ATM_SKB(skb)->iovcnt, GFP_ATOMIC);
- if (!dsc) {
- if (vcc->pop)
- vcc->pop(vcc, skb);
- else
- dev_kfree_skb_irq(skb);
- return -EAGAIN;
- }
- /* @@@ should check alignment */
- put = dsc+8;
- dsc[0] = uPD98401_TXPD_V | uPD98401_TXPD_DP |
- (vcc->aal == ATM_AAL5 ? uPD98401_TXPD_AAL5 : 0 |
- (ATM_SKB(skb)->atm_options & ATM_ATMOPT_CLP ?
- uPD98401_CLPM_1 : uPD98401_CLPM_0));
- dsc[1] = 0;
- dsc[2] = ATM_SKB(skb)->iovcnt * uPD98401_TXBD_SIZE;
- dsc[3] = virt_to_bus(put);
- for (i = 0; i < ATM_SKB(skb)->iovcnt; i++) {
- *put++ = ((struct iovec *) skb->data)[i].iov_len;
- *put++ = virt_to_bus(((struct iovec *)
- skb->data)[i].iov_base);
- }
- put[-2] |= uPD98401_TXBD_LAST;
-#endif
- }
- ZATM_PRV_DSC(skb) = dsc;
- skb_queue_tail(&zatm_vcc->tx_queue,skb);
- DPRINTK("QRP=0x%08lx\n",zpeekl(zatm_dev,zatm_vcc->tx_chan*VC_SIZE/4+
- uPD98401_TXVC_QRP));
- zwait();
- zout(uPD98401_TX_READY | (zatm_vcc->tx_chan <<
- uPD98401_CHAN_ADDR_SHIFT),CMR);
- spin_unlock_irqrestore(&zatm_dev->lock, flags);
- EVENT("done\n",0,0);
- return 0;
-}
-
-
-static inline void dequeue_tx(struct atm_vcc *vcc)
-{
- struct zatm_vcc *zatm_vcc;
- struct sk_buff *skb;
-
- EVENT("dequeue_tx\n",0,0);
- zatm_vcc = ZATM_VCC(vcc);
- skb = skb_dequeue(&zatm_vcc->tx_queue);
- if (!skb) {
- printk(KERN_CRIT DEV_LABEL "(itf %d): dequeue_tx but not "
- "txing\n",vcc->dev->number);
- return;
- }
-#if 0 /* @@@ would fail on CLP */
-if (*ZATM_PRV_DSC(skb) != (uPD98401_TXPD_V | uPD98401_TXPD_DP |
- uPD98401_TXPD_SM | uPD98401_TXPD_AAL5)) printk("@#*$!!!! (%08x)\n",
- *ZATM_PRV_DSC(skb));
-#endif
- *ZATM_PRV_DSC(skb) = 0; /* mark as invalid */
- zatm_vcc->txing--;
- if (vcc->pop) vcc->pop(vcc,skb);
- else dev_kfree_skb_irq(skb);
- while ((skb = skb_dequeue(&zatm_vcc->backlog)))
- if (do_tx(skb) == RING_BUSY) {
- skb_queue_head(&zatm_vcc->backlog,skb);
- break;
- }
- atomic_inc(&vcc->stats->tx);
- wake_up(&zatm_vcc->tx_wait);
-}
-
-
-static void poll_tx(struct atm_dev *dev,int mbx)
-{
- struct zatm_dev *zatm_dev;
- unsigned long pos;
- u32 x;
-
- EVENT("poll_tx\n",0,0);
- zatm_dev = ZATM_DEV(dev);
- pos = (zatm_dev->mbx_start[mbx] & ~0xffffUL) | zin(MTA(mbx));
- while (x = zin(MWA(mbx)), (pos & 0xffff) != x) {
- int chan;
-
-#if 1
- u32 data,*addr;
-
- EVENT("MBX: host 0x%lx, nic 0x%x\n",pos,x);
- addr = (u32 *) pos;
- data = *addr;
- chan = (data & uPD98401_TXI_CONN) >> uPD98401_TXI_CONN_SHIFT;
- EVENT("addr = 0x%lx, data = 0x%08x,",(unsigned long) addr,
- data);
- EVENT("chan = %d\n",chan,0);
-#else
-NO !
- chan = (zatm_dev->mbx_start[mbx][pos >> 2] & uPD98401_TXI_CONN)
- >> uPD98401_TXI_CONN_SHIFT;
-#endif
- if (chan < zatm_dev->chans && zatm_dev->tx_map[chan])
- dequeue_tx(zatm_dev->tx_map[chan]);
- else {
- printk(KERN_CRIT DEV_LABEL "(itf %d): TX indication "
- "for non-existing channel %d\n",dev->number,chan);
- event_dump();
- }
- if (((pos += 4) & 0xffff) == zatm_dev->mbx_end[mbx])
- pos = zatm_dev->mbx_start[mbx];
- }
- zout(pos & 0xffff,MTA(mbx));
-}
-
-
-/*
- * BUG BUG BUG: Doesn't handle "new-style" rate specification yet.
- */
-
-static int alloc_shaper(struct atm_dev *dev,int *pcr,int min,int max,int ubr)
-{
- struct zatm_dev *zatm_dev;
- unsigned long flags;
- unsigned long i,m,c;
- int shaper;
-
- DPRINTK("alloc_shaper (min = %d, max = %d)\n",min,max);
- zatm_dev = ZATM_DEV(dev);
- if (!zatm_dev->free_shapers) return -EAGAIN;
- for (shaper = 0; !((zatm_dev->free_shapers >> shaper) & 1); shaper++);
- zatm_dev->free_shapers &= ~1 << shaper;
- if (ubr) {
- c = 5;
- i = m = 1;
- zatm_dev->ubr_ref_cnt++;
- zatm_dev->ubr = shaper;
- *pcr = 0;
- }
- else {
- if (min) {
- if (min <= 255) {
- i = min;
- m = ATM_OC3_PCR;
- }
- else {
- i = 255;
- m = ATM_OC3_PCR*255/min;
- }
- }
- else {
- if (max > zatm_dev->tx_bw) max = zatm_dev->tx_bw;
- if (max <= 255) {
- i = max;
- m = ATM_OC3_PCR;
- }
- else {
- i = 255;
- m = DIV_ROUND_UP(ATM_OC3_PCR*255, max);
- }
- }
- if (i > m) {
- printk(KERN_CRIT DEV_LABEL "shaper algorithm botched "
- "[%d,%d] -> i=%ld,m=%ld\n",min,max,i,m);
- m = i;
- }
- *pcr = i*ATM_OC3_PCR/m;
- c = 20; /* @@@ should use max_cdv ! */
- if ((min && *pcr < min) || (max && *pcr > max)) return -EINVAL;
- if (zatm_dev->tx_bw < *pcr) return -EAGAIN;
- zatm_dev->tx_bw -= *pcr;
- }
- spin_lock_irqsave(&zatm_dev->lock, flags);
- DPRINTK("i = %d, m = %d, PCR = %d\n",i,m,*pcr);
- zpokel(zatm_dev,(i << uPD98401_IM_I_SHIFT) | m,uPD98401_IM(shaper));
- zpokel(zatm_dev,c << uPD98401_PC_C_SHIFT,uPD98401_PC(shaper));
- zpokel(zatm_dev,0,uPD98401_X(shaper));
- zpokel(zatm_dev,0,uPD98401_Y(shaper));
- zpokel(zatm_dev,uPD98401_PS_E,uPD98401_PS(shaper));
- spin_unlock_irqrestore(&zatm_dev->lock, flags);
- return shaper;
-}
-
-
-static void dealloc_shaper(struct atm_dev *dev,int shaper)
-{
- struct zatm_dev *zatm_dev;
- unsigned long flags;
-
- zatm_dev = ZATM_DEV(dev);
- if (shaper == zatm_dev->ubr) {
- if (--zatm_dev->ubr_ref_cnt) return;
- zatm_dev->ubr = -1;
- }
- spin_lock_irqsave(&zatm_dev->lock, flags);
- zpokel(zatm_dev,zpeekl(zatm_dev,uPD98401_PS(shaper)) & ~uPD98401_PS_E,
- uPD98401_PS(shaper));
- spin_unlock_irqrestore(&zatm_dev->lock, flags);
- zatm_dev->free_shapers |= 1 << shaper;
-}
-
-
-static void close_tx(struct atm_vcc *vcc)
-{
- struct zatm_dev *zatm_dev;
- struct zatm_vcc *zatm_vcc;
- unsigned long flags;
- int chan;
-
- zatm_vcc = ZATM_VCC(vcc);
- zatm_dev = ZATM_DEV(vcc->dev);
- chan = zatm_vcc->tx_chan;
- if (!chan) return;
- DPRINTK("close_tx\n");
- if (skb_peek(&zatm_vcc->backlog)) {
- printk("waiting for backlog to drain ...\n");
- event_dump();
- wait_event(zatm_vcc->tx_wait, !skb_peek(&zatm_vcc->backlog));
- }
- if (skb_peek(&zatm_vcc->tx_queue)) {
- printk("waiting for TX queue to drain ...\n");
- event_dump();
- wait_event(zatm_vcc->tx_wait, !skb_peek(&zatm_vcc->tx_queue));
- }
- spin_lock_irqsave(&zatm_dev->lock, flags);
-#if 0
- zwait();
- zout(uPD98401_DEACT_CHAN | (chan << uPD98401_CHAN_ADDR_SHIFT),CMR);
-#endif
- zwait();
- zout(uPD98401_CLOSE_CHAN | (chan << uPD98401_CHAN_ADDR_SHIFT),CMR);
- zwait();
- if (!(zin(CMR) & uPD98401_CHAN_ADDR))
- printk(KERN_CRIT DEV_LABEL "(itf %d): can't close TX channel "
- "%d\n",vcc->dev->number,chan);
- spin_unlock_irqrestore(&zatm_dev->lock, flags);
- zatm_vcc->tx_chan = 0;
- zatm_dev->tx_map[chan] = NULL;
- if (zatm_vcc->shaper != zatm_dev->ubr) {
- zatm_dev->tx_bw += vcc->qos.txtp.min_pcr;
- dealloc_shaper(vcc->dev,zatm_vcc->shaper);
- }
- kfree(zatm_vcc->ring);
-}
-
-
-static int open_tx_first(struct atm_vcc *vcc)
-{
- struct zatm_dev *zatm_dev;
- struct zatm_vcc *zatm_vcc;
- unsigned long flags;
- u32 *loop;
- unsigned short chan;
- int unlimited;
-
- DPRINTK("open_tx_first\n");
- zatm_dev = ZATM_DEV(vcc->dev);
- zatm_vcc = ZATM_VCC(vcc);
- zatm_vcc->tx_chan = 0;
- if (vcc->qos.txtp.traffic_class == ATM_NONE) return 0;
- spin_lock_irqsave(&zatm_dev->lock, flags);
- zwait();
- zout(uPD98401_OPEN_CHAN,CMR);
- zwait();
- DPRINTK("0x%x 0x%x\n",zin(CMR),zin(CER));
- chan = (zin(CMR) & uPD98401_CHAN_ADDR) >> uPD98401_CHAN_ADDR_SHIFT;
- spin_unlock_irqrestore(&zatm_dev->lock, flags);
- DPRINTK("chan is %d\n",chan);
- if (!chan) return -EAGAIN;
- unlimited = vcc->qos.txtp.traffic_class == ATM_UBR &&
- (!vcc->qos.txtp.max_pcr || vcc->qos.txtp.max_pcr == ATM_MAX_PCR ||
- vcc->qos.txtp.max_pcr >= ATM_OC3_PCR);
- if (unlimited && zatm_dev->ubr != -1) zatm_vcc->shaper = zatm_dev->ubr;
- else {
- int pcr;
-
- if (unlimited) vcc->qos.txtp.max_sdu = ATM_MAX_AAL5_PDU;
- if ((zatm_vcc->shaper = alloc_shaper(vcc->dev,&pcr,
- vcc->qos.txtp.min_pcr,vcc->qos.txtp.max_pcr,unlimited))
- < 0) {
- close_tx(vcc);
- return zatm_vcc->shaper;
- }
- if (pcr > ATM_OC3_PCR) pcr = ATM_OC3_PCR;
- vcc->qos.txtp.min_pcr = vcc->qos.txtp.max_pcr = pcr;
- }
- zatm_vcc->tx_chan = chan;
- skb_queue_head_init(&zatm_vcc->tx_queue);
- init_waitqueue_head(&zatm_vcc->tx_wait);
- /* initialize ring */
- zatm_vcc->ring = kzalloc(RING_SIZE,GFP_KERNEL);
- if (!zatm_vcc->ring) return -ENOMEM;
- loop = zatm_vcc->ring+RING_ENTRIES*RING_WORDS;
- loop[0] = uPD98401_TXPD_V;
- loop[1] = loop[2] = 0;
- loop[3] = virt_to_bus(zatm_vcc->ring);
- zatm_vcc->ring_curr = 0;
- zatm_vcc->txing = 0;
- skb_queue_head_init(&zatm_vcc->backlog);
- zpokel(zatm_dev,virt_to_bus(zatm_vcc->ring),
- chan*VC_SIZE/4+uPD98401_TXVC_QRP);
- return 0;
-}
-
-
-static int open_tx_second(struct atm_vcc *vcc)
-{
- struct zatm_dev *zatm_dev;
- struct zatm_vcc *zatm_vcc;
- unsigned long flags;
-
- DPRINTK("open_tx_second\n");
- zatm_dev = ZATM_DEV(vcc->dev);
- zatm_vcc = ZATM_VCC(vcc);
- if (!zatm_vcc->tx_chan) return 0;
- /* set up VC descriptor */
- spin_lock_irqsave(&zatm_dev->lock, flags);
- zpokel(zatm_dev,0,zatm_vcc->tx_chan*VC_SIZE/4);
- zpokel(zatm_dev,uPD98401_TXVC_L | (zatm_vcc->shaper <<
- uPD98401_TXVC_SHP_SHIFT) | (vcc->vpi << uPD98401_TXVC_VPI_SHIFT) |
- vcc->vci,zatm_vcc->tx_chan*VC_SIZE/4+1);
- zpokel(zatm_dev,0,zatm_vcc->tx_chan*VC_SIZE/4+2);
- spin_unlock_irqrestore(&zatm_dev->lock, flags);
- zatm_dev->tx_map[zatm_vcc->tx_chan] = vcc;
- return 0;
-}
-
-
-static int start_tx(struct atm_dev *dev)
-{
- struct zatm_dev *zatm_dev;
- int i;
-
- DPRINTK("start_tx\n");
- zatm_dev = ZATM_DEV(dev);
- zatm_dev->tx_map = kmalloc_array(zatm_dev->chans,
- sizeof(*zatm_dev->tx_map),
- GFP_KERNEL);
- if (!zatm_dev->tx_map) return -ENOMEM;
- zatm_dev->tx_bw = ATM_OC3_PCR;
- zatm_dev->free_shapers = (1 << NR_SHAPERS)-1;
- zatm_dev->ubr = -1;
- zatm_dev->ubr_ref_cnt = 0;
- /* initialize shapers */
- for (i = 0; i < NR_SHAPERS; i++) zpokel(zatm_dev,0,uPD98401_PS(i));
- return 0;
-}
-
-
-/*------------------------------- interrupts --------------------------------*/
-
-
-static irqreturn_t zatm_int(int irq,void *dev_id)
-{
- struct atm_dev *dev;
- struct zatm_dev *zatm_dev;
- u32 reason;
- int handled = 0;
-
- dev = dev_id;
- zatm_dev = ZATM_DEV(dev);
- while ((reason = zin(GSR))) {
- handled = 1;
- EVENT("reason 0x%x\n",reason,0);
- if (reason & uPD98401_INT_PI) {
- EVENT("PHY int\n",0,0);
- dev->phy->interrupt(dev);
- }
- if (reason & uPD98401_INT_RQA) {
- unsigned long pools;
- int i;
-
- pools = zin(RQA);
- EVENT("RQA (0x%08x)\n",pools,0);
- for (i = 0; pools; i++) {
- if (pools & 1) {
- refill_pool(dev,i);
- zatm_dev->pool_info[i].rqa_count++;
- }
- pools >>= 1;
- }
- }
- if (reason & uPD98401_INT_RQU) {
- unsigned long pools;
- int i;
- pools = zin(RQU);
- printk(KERN_WARNING DEV_LABEL "(itf %d): RQU 0x%08lx\n",
- dev->number,pools);
- event_dump();
- for (i = 0; pools; i++) {
- if (pools & 1) {
- refill_pool(dev,i);
- zatm_dev->pool_info[i].rqu_count++;
- }
- pools >>= 1;
- }
- }
- /* don't handle RD */
- if (reason & uPD98401_INT_SPE)
- printk(KERN_ALERT DEV_LABEL "(itf %d): system parity "
- "error at 0x%08x\n",dev->number,zin(ADDR));
- if (reason & uPD98401_INT_CPE)
- printk(KERN_ALERT DEV_LABEL "(itf %d): control memory "
- "parity error at 0x%08x\n",dev->number,zin(ADDR));
- if (reason & uPD98401_INT_SBE) {
- printk(KERN_ALERT DEV_LABEL "(itf %d): system bus "
- "error at 0x%08x\n",dev->number,zin(ADDR));
- event_dump();
- }
- /* don't handle IND */
- if (reason & uPD98401_INT_MF) {
- printk(KERN_CRIT DEV_LABEL "(itf %d): mailbox full "
- "(0x%x)\n",dev->number,(reason & uPD98401_INT_MF)
- >> uPD98401_INT_MF_SHIFT);
- event_dump();
- /* @@@ should try to recover */
- }
- if (reason & uPD98401_INT_MM) {
- if (reason & 1) poll_rx(dev,0);
- if (reason & 2) poll_rx(dev,1);
- if (reason & 4) poll_tx(dev,2);
- if (reason & 8) poll_tx(dev,3);
- }
- /* @@@ handle RCRn */
- }
- return IRQ_RETVAL(handled);
-}
-
-
-/*----------------------------- (E)EPROM access -----------------------------*/
-
-
-static void eprom_set(struct zatm_dev *zatm_dev, unsigned long value,
- unsigned short cmd)
-{
- int error;
-
- if ((error = pci_write_config_dword(zatm_dev->pci_dev,cmd,value)))
- printk(KERN_ERR DEV_LABEL ": PCI write failed (0x%02x)\n",
- error);
-}
-
-
-static unsigned long eprom_get(struct zatm_dev *zatm_dev, unsigned short cmd)
-{
- unsigned int value;
- int error;
-
- if ((error = pci_read_config_dword(zatm_dev->pci_dev,cmd,&value)))
- printk(KERN_ERR DEV_LABEL ": PCI read failed (0x%02x)\n",
- error);
- return value;
-}
-
-
-static void eprom_put_bits(struct zatm_dev *zatm_dev, unsigned long data,
- int bits, unsigned short cmd)
-{
- unsigned long value;
- int i;
-
- for (i = bits-1; i >= 0; i--) {
- value = ZEPROM_CS | (((data >> i) & 1) ? ZEPROM_DI : 0);
- eprom_set(zatm_dev,value,cmd);
- eprom_set(zatm_dev,value | ZEPROM_SK,cmd);
- eprom_set(zatm_dev,value,cmd);
- }
-}
-
-
-static void eprom_get_byte(struct zatm_dev *zatm_dev, unsigned char *byte,
- unsigned short cmd)
-{
- int i;
-
- *byte = 0;
- for (i = 8; i; i--) {
- eprom_set(zatm_dev,ZEPROM_CS,cmd);
- eprom_set(zatm_dev,ZEPROM_CS | ZEPROM_SK,cmd);
- *byte <<= 1;
- if (eprom_get(zatm_dev,cmd) & ZEPROM_DO) *byte |= 1;
- eprom_set(zatm_dev,ZEPROM_CS,cmd);
- }
-}
-
-
-static int eprom_try_esi(struct atm_dev *dev, unsigned short cmd, int offset,
- int swap)
-{
- unsigned char buf[ZEPROM_SIZE];
- struct zatm_dev *zatm_dev;
- int i;
-
- zatm_dev = ZATM_DEV(dev);
- for (i = 0; i < ZEPROM_SIZE; i += 2) {
- eprom_set(zatm_dev,ZEPROM_CS,cmd); /* select EPROM */
- eprom_put_bits(zatm_dev,ZEPROM_CMD_READ,ZEPROM_CMD_LEN,cmd);
- eprom_put_bits(zatm_dev,i >> 1,ZEPROM_ADDR_LEN,cmd);
- eprom_get_byte(zatm_dev,buf+i+swap,cmd);
- eprom_get_byte(zatm_dev,buf+i+1-swap,cmd);
- eprom_set(zatm_dev,0,cmd); /* deselect EPROM */
- }
- memcpy(dev->esi,buf+offset,ESI_LEN);
- return memcmp(dev->esi,"\0\0\0\0\0",ESI_LEN); /* assumes ESI_LEN == 6 */
-}
-
-
-static void eprom_get_esi(struct atm_dev *dev)
-{
- if (eprom_try_esi(dev,ZEPROM_V1_REG,ZEPROM_V1_ESI_OFF,1)) return;
- (void) eprom_try_esi(dev,ZEPROM_V2_REG,ZEPROM_V2_ESI_OFF,0);
-}
-
-
-/*--------------------------------- entries ---------------------------------*/
-
-
-static int zatm_init(struct atm_dev *dev)
-{
- struct zatm_dev *zatm_dev;
- struct pci_dev *pci_dev;
- unsigned short command;
- int error,i,last;
- unsigned long t0,t1,t2;
-
- DPRINTK(">zatm_init\n");
- zatm_dev = ZATM_DEV(dev);
- spin_lock_init(&zatm_dev->lock);
- pci_dev = zatm_dev->pci_dev;
- zatm_dev->base = pci_resource_start(pci_dev, 0);
- zatm_dev->irq = pci_dev->irq;
- if ((error = pci_read_config_word(pci_dev,PCI_COMMAND,&command))) {
- printk(KERN_ERR DEV_LABEL "(itf %d): init error 0x%02x\n",
- dev->number,error);
- return -EINVAL;
- }
- if ((error = pci_write_config_word(pci_dev,PCI_COMMAND,
- command | PCI_COMMAND_IO | PCI_COMMAND_MASTER))) {
- printk(KERN_ERR DEV_LABEL "(itf %d): can't enable IO (0x%02x)"
- "\n",dev->number,error);
- return -EIO;
- }
- eprom_get_esi(dev);
- printk(KERN_NOTICE DEV_LABEL "(itf %d): rev.%d,base=0x%x,irq=%d,",
- dev->number,pci_dev->revision,zatm_dev->base,zatm_dev->irq);
- /* reset uPD98401 */
- zout(0,SWR);
- while (!(zin(GSR) & uPD98401_INT_IND));
- zout(uPD98401_GMR_ONE /*uPD98401_BURST4*/,GMR);
- last = MAX_CRAM_SIZE;
- for (i = last-RAM_INCREMENT; i >= 0; i -= RAM_INCREMENT) {
- zpokel(zatm_dev,0x55555555,i);
- if (zpeekl(zatm_dev,i) != 0x55555555) last = i;
- else {
- zpokel(zatm_dev,0xAAAAAAAA,i);
- if (zpeekl(zatm_dev,i) != 0xAAAAAAAA) last = i;
- else zpokel(zatm_dev,i,i);
- }
- }
- for (i = 0; i < last; i += RAM_INCREMENT)
- if (zpeekl(zatm_dev,i) != i) break;
- zatm_dev->mem = i << 2;
- while (i) zpokel(zatm_dev,0,--i);
- /* reset again to rebuild memory pointers */
- zout(0,SWR);
- while (!(zin(GSR) & uPD98401_INT_IND));
- zout(uPD98401_GMR_ONE | uPD98401_BURST8 | uPD98401_BURST4 |
- uPD98401_BURST2 | uPD98401_GMR_PM | uPD98401_GMR_DR,GMR);
- /* TODO: should shrink allocation now */
- printk("mem=%dkB,%s (",zatm_dev->mem >> 10,zatm_dev->copper ? "UTP" :
- "MMF");
- for (i = 0; i < ESI_LEN; i++)
- printk("%02X%s",dev->esi[i],i == ESI_LEN-1 ? ")\n" : "-");
- do {
- unsigned long flags;
-
- spin_lock_irqsave(&zatm_dev->lock, flags);
- t0 = zpeekl(zatm_dev,uPD98401_TSR);
- udelay(10);
- t1 = zpeekl(zatm_dev,uPD98401_TSR);
- udelay(1010);
- t2 = zpeekl(zatm_dev,uPD98401_TSR);
- spin_unlock_irqrestore(&zatm_dev->lock, flags);
- }
- while (t0 > t1 || t1 > t2); /* loop if wrapping ... */
- zatm_dev->khz = t2-2*t1+t0;
- printk(KERN_NOTICE DEV_LABEL "(itf %d): uPD98401 %d.%d at %d.%03d "
- "MHz\n",dev->number,
- (zin(VER) & uPD98401_MAJOR) >> uPD98401_MAJOR_SHIFT,
- zin(VER) & uPD98401_MINOR,zatm_dev->khz/1000,zatm_dev->khz % 1000);
- return uPD98402_init(dev);
-}
-
-
-static int zatm_start(struct atm_dev *dev)
-{
- struct zatm_dev *zatm_dev = ZATM_DEV(dev);
- struct pci_dev *pdev = zatm_dev->pci_dev;
- unsigned long curr;
- int pools,vccs,rx;
- int error, i, ld;
-
- DPRINTK("zatm_start\n");
- zatm_dev->rx_map = zatm_dev->tx_map = NULL;
- for (i = 0; i < NR_MBX; i++)
- zatm_dev->mbx_start[i] = 0;
- error = request_irq(zatm_dev->irq, zatm_int, IRQF_SHARED, DEV_LABEL, dev);
- if (error < 0) {
- printk(KERN_ERR DEV_LABEL "(itf %d): IRQ%d is already in use\n",
- dev->number,zatm_dev->irq);
- goto done;
- }
- /* define memory regions */
- pools = NR_POOLS;
- if (NR_SHAPERS*SHAPER_SIZE > pools*POOL_SIZE)
- pools = NR_SHAPERS*SHAPER_SIZE/POOL_SIZE;
- vccs = (zatm_dev->mem-NR_SHAPERS*SHAPER_SIZE-pools*POOL_SIZE)/
- (2*VC_SIZE+RX_SIZE);
- ld = -1;
- for (rx = 1; rx < vccs; rx <<= 1) ld++;
- dev->ci_range.vpi_bits = 0; /* @@@ no VPI for now */
- dev->ci_range.vci_bits = ld;
- dev->link_rate = ATM_OC3_PCR;
- zatm_dev->chans = vccs; /* ??? */
- curr = rx*RX_SIZE/4;
- DPRINTK("RX pool 0x%08lx\n",curr);
- zpokel(zatm_dev,curr,uPD98401_PMA); /* receive pool */
- zatm_dev->pool_base = curr;
- curr += pools*POOL_SIZE/4;
- DPRINTK("Shapers 0x%08lx\n",curr);
- zpokel(zatm_dev,curr,uPD98401_SMA); /* shapers */
- curr += NR_SHAPERS*SHAPER_SIZE/4;
- DPRINTK("Free 0x%08lx\n",curr);
- zpokel(zatm_dev,curr,uPD98401_TOS); /* free pool */
- printk(KERN_INFO DEV_LABEL "(itf %d): %d shapers, %d pools, %d RX, "
- "%ld VCs\n",dev->number,NR_SHAPERS,pools,rx,
- (zatm_dev->mem-curr*4)/VC_SIZE);
- /* create mailboxes */
- for (i = 0; i < NR_MBX; i++) {
- void *mbx;
- dma_addr_t mbx_dma;
-
- if (!mbx_entries[i])
- continue;
- mbx = dma_alloc_coherent(&pdev->dev,
- 2 * MBX_SIZE(i), &mbx_dma, GFP_KERNEL);
- if (!mbx) {
- error = -ENOMEM;
- goto out;
- }
- /*
- * Alignment provided by dma_alloc_coherent() isn't enough
- * for this device.
- */
- if (((unsigned long)mbx ^ mbx_dma) & 0xffff) {
- printk(KERN_ERR DEV_LABEL "(itf %d): system "
- "bus incompatible with driver\n", dev->number);
- dma_free_coherent(&pdev->dev, 2*MBX_SIZE(i), mbx, mbx_dma);
- error = -ENODEV;
- goto out;
- }
- DPRINTK("mbx@0x%08lx-0x%08lx\n", mbx, mbx + MBX_SIZE(i));
- zatm_dev->mbx_start[i] = (unsigned long)mbx;
- zatm_dev->mbx_dma[i] = mbx_dma;
- zatm_dev->mbx_end[i] = (zatm_dev->mbx_start[i] + MBX_SIZE(i)) &
- 0xffff;
- zout(mbx_dma >> 16, MSH(i));
- zout(mbx_dma, MSL(i));
- zout(zatm_dev->mbx_end[i], MBA(i));
- zout((unsigned long)mbx & 0xffff, MTA(i));
- zout((unsigned long)mbx & 0xffff, MWA(i));
- }
- error = start_tx(dev);
- if (error)
- goto out;
- error = start_rx(dev);
- if (error)
- goto out_tx;
- error = dev->phy->start(dev);
- if (error)
- goto out_rx;
- zout(0xffffffff,IMR); /* enable interrupts */
- /* enable TX & RX */
- zout(zin(GMR) | uPD98401_GMR_SE | uPD98401_GMR_RE,GMR);
-done:
- return error;
-
-out_rx:
- kfree(zatm_dev->rx_map);
-out_tx:
- kfree(zatm_dev->tx_map);
-out:
- while (i-- > 0) {
- dma_free_coherent(&pdev->dev, 2 * MBX_SIZE(i),
- (void *)zatm_dev->mbx_start[i],
- zatm_dev->mbx_dma[i]);
- }
- free_irq(zatm_dev->irq, dev);
- goto done;
-}
-
-
-static void zatm_close(struct atm_vcc *vcc)
-{
- DPRINTK(">zatm_close\n");
- if (!ZATM_VCC(vcc)) return;
- clear_bit(ATM_VF_READY,&vcc->flags);
- close_rx(vcc);
- EVENT("close_tx\n",0,0);
- close_tx(vcc);
- DPRINTK("zatm_close: done waiting\n");
- /* deallocate memory */
- kfree(ZATM_VCC(vcc));
- vcc->dev_data = NULL;
- clear_bit(ATM_VF_ADDR,&vcc->flags);
-}
-
-
-static int zatm_open(struct atm_vcc *vcc)
-{
- struct zatm_vcc *zatm_vcc;
- short vpi = vcc->vpi;
- int vci = vcc->vci;
- int error;
-
- DPRINTK(">zatm_open\n");
- if (!test_bit(ATM_VF_PARTIAL,&vcc->flags))
- vcc->dev_data = NULL;
- if (vci != ATM_VPI_UNSPEC && vpi != ATM_VCI_UNSPEC)
- set_bit(ATM_VF_ADDR,&vcc->flags);
- if (vcc->qos.aal != ATM_AAL5) return -EINVAL; /* @@@ AAL0 */
- DPRINTK(DEV_LABEL "(itf %d): open %d.%d\n",vcc->dev->number,vcc->vpi,
- vcc->vci);
- if (!test_bit(ATM_VF_PARTIAL,&vcc->flags)) {
- zatm_vcc = kmalloc(sizeof(*zatm_vcc), GFP_KERNEL);
- if (!zatm_vcc) {
- clear_bit(ATM_VF_ADDR,&vcc->flags);
- return -ENOMEM;
- }
- vcc->dev_data = zatm_vcc;
- ZATM_VCC(vcc)->tx_chan = 0; /* for zatm_close after open_rx */
- if ((error = open_rx_first(vcc))) {
- zatm_close(vcc);
- return error;
- }
- if ((error = open_tx_first(vcc))) {
- zatm_close(vcc);
- return error;
- }
- }
- if (vci == ATM_VPI_UNSPEC || vpi == ATM_VCI_UNSPEC) return 0;
- if ((error = open_rx_second(vcc))) {
- zatm_close(vcc);
- return error;
- }
- if ((error = open_tx_second(vcc))) {
- zatm_close(vcc);
- return error;
- }
- set_bit(ATM_VF_READY,&vcc->flags);
- return 0;
-}
-
-
-static int zatm_change_qos(struct atm_vcc *vcc,struct atm_qos *qos,int flags)
-{
- printk("Not yet implemented\n");
- return -ENOSYS;
- /* @@@ */
-}
-
-
-static int zatm_ioctl(struct atm_dev *dev,unsigned int cmd,void __user *arg)
-{
- struct zatm_dev *zatm_dev;
- unsigned long flags;
-
- zatm_dev = ZATM_DEV(dev);
- switch (cmd) {
- case ZATM_GETPOOLZ:
- if (!capable(CAP_NET_ADMIN)) return -EPERM;
- fallthrough;
- case ZATM_GETPOOL:
- {
- struct zatm_pool_info info;
- int pool;
-
- if (get_user(pool,
- &((struct zatm_pool_req __user *) arg)->pool_num))
- return -EFAULT;
- if (pool < 0 || pool > ZATM_LAST_POOL)
- return -EINVAL;
- pool = array_index_nospec(pool,
- ZATM_LAST_POOL + 1);
- spin_lock_irqsave(&zatm_dev->lock, flags);
- info = zatm_dev->pool_info[pool];
- if (cmd == ZATM_GETPOOLZ) {
- zatm_dev->pool_info[pool].rqa_count = 0;
- zatm_dev->pool_info[pool].rqu_count = 0;
- }
- spin_unlock_irqrestore(&zatm_dev->lock, flags);
- return copy_to_user(
- &((struct zatm_pool_req __user *) arg)->info,
- &info,sizeof(info)) ? -EFAULT : 0;
- }
- case ZATM_SETPOOL:
- {
- struct zatm_pool_info info;
- int pool;
-
- if (!capable(CAP_NET_ADMIN)) return -EPERM;
- if (get_user(pool,
- &((struct zatm_pool_req __user *) arg)->pool_num))
- return -EFAULT;
- if (pool < 0 || pool > ZATM_LAST_POOL)
- return -EINVAL;
- pool = array_index_nospec(pool,
- ZATM_LAST_POOL + 1);
- if (copy_from_user(&info,
- &((struct zatm_pool_req __user *) arg)->info,
- sizeof(info))) return -EFAULT;
- if (!info.low_water)
- info.low_water = zatm_dev->
- pool_info[pool].low_water;
- if (!info.high_water)
- info.high_water = zatm_dev->
- pool_info[pool].high_water;
- if (!info.next_thres)
- info.next_thres = zatm_dev->
- pool_info[pool].next_thres;
- if (info.low_water >= info.high_water ||
- info.low_water < 0)
- return -EINVAL;
- spin_lock_irqsave(&zatm_dev->lock, flags);
- zatm_dev->pool_info[pool].low_water =
- info.low_water;
- zatm_dev->pool_info[pool].high_water =
- info.high_water;
- zatm_dev->pool_info[pool].next_thres =
- info.next_thres;
- spin_unlock_irqrestore(&zatm_dev->lock, flags);
- return 0;
- }
- default:
- if (!dev->phy->ioctl) return -ENOIOCTLCMD;
- return dev->phy->ioctl(dev,cmd,arg);
- }
-}
-
-static int zatm_send(struct atm_vcc *vcc,struct sk_buff *skb)
-{
- int error;
-
- EVENT(">zatm_send 0x%lx\n",(unsigned long) skb,0);
- if (!ZATM_VCC(vcc)->tx_chan || !test_bit(ATM_VF_READY,&vcc->flags)) {
- if (vcc->pop) vcc->pop(vcc,skb);
- else dev_kfree_skb(skb);
- return -EINVAL;
- }
- if (!skb) {
- printk(KERN_CRIT "!skb in zatm_send ?\n");
- if (vcc->pop) vcc->pop(vcc,skb);
- return -EINVAL;
- }
- ATM_SKB(skb)->vcc = vcc;
- error = do_tx(skb);
- if (error != RING_BUSY) return error;
- skb_queue_tail(&ZATM_VCC(vcc)->backlog,skb);
- return 0;
-}
-
-
-static void zatm_phy_put(struct atm_dev *dev,unsigned char value,
- unsigned long addr)
-{
- struct zatm_dev *zatm_dev;
-
- zatm_dev = ZATM_DEV(dev);
- zwait();
- zout(value,CER);
- zout(uPD98401_IND_ACC | uPD98401_IA_B0 |
- (uPD98401_IA_TGT_PHY << uPD98401_IA_TGT_SHIFT) | addr,CMR);
-}
-
-
-static unsigned char zatm_phy_get(struct atm_dev *dev,unsigned long addr)
-{
- struct zatm_dev *zatm_dev;
-
- zatm_dev = ZATM_DEV(dev);
- zwait();
- zout(uPD98401_IND_ACC | uPD98401_IA_B0 | uPD98401_IA_RW |
- (uPD98401_IA_TGT_PHY << uPD98401_IA_TGT_SHIFT) | addr,CMR);
- zwait();
- return zin(CER) & 0xff;
-}
-
-
-static const struct atmdev_ops ops = {
- .open = zatm_open,
- .close = zatm_close,
- .ioctl = zatm_ioctl,
- .send = zatm_send,
- .phy_put = zatm_phy_put,
- .phy_get = zatm_phy_get,
- .change_qos = zatm_change_qos,
-};
-
-static int zatm_init_one(struct pci_dev *pci_dev,
- const struct pci_device_id *ent)
-{
- struct atm_dev *dev;
- struct zatm_dev *zatm_dev;
- int ret = -ENOMEM;
-
- zatm_dev = kmalloc(sizeof(*zatm_dev), GFP_KERNEL);
- if (!zatm_dev) {
- printk(KERN_EMERG "%s: memory shortage\n", DEV_LABEL);
- goto out;
- }
-
- dev = atm_dev_register(DEV_LABEL, &pci_dev->dev, &ops, -1, NULL);
- if (!dev)
- goto out_free;
-
- ret = pci_enable_device(pci_dev);
- if (ret < 0)
- goto out_deregister;
-
- ret = pci_request_regions(pci_dev, DEV_LABEL);
- if (ret < 0)
- goto out_disable;
-
- ret = dma_set_mask_and_coherent(&pci_dev->dev, DMA_BIT_MASK(32));
- if (ret < 0)
- goto out_release;
-
- zatm_dev->pci_dev = pci_dev;
- dev->dev_data = zatm_dev;
- zatm_dev->copper = (int)ent->driver_data;
- if ((ret = zatm_init(dev)) || (ret = zatm_start(dev)))
- goto out_release;
-
- pci_set_drvdata(pci_dev, dev);
- zatm_dev->more = zatm_boards;
- zatm_boards = dev;
- ret = 0;
-out:
- return ret;
-
-out_release:
- pci_release_regions(pci_dev);
-out_disable:
- pci_disable_device(pci_dev);
-out_deregister:
- atm_dev_deregister(dev);
-out_free:
- kfree(zatm_dev);
- goto out;
-}
-
-
-MODULE_LICENSE("GPL");
-
-static const struct pci_device_id zatm_pci_tbl[] = {
- { PCI_VDEVICE(ZEITNET, PCI_DEVICE_ID_ZEITNET_1221), ZATM_COPPER },
- { PCI_VDEVICE(ZEITNET, PCI_DEVICE_ID_ZEITNET_1225), 0 },
- { 0, }
-};
-MODULE_DEVICE_TABLE(pci, zatm_pci_tbl);
-
-static struct pci_driver zatm_driver = {
- .name = DEV_LABEL,
- .id_table = zatm_pci_tbl,
- .probe = zatm_init_one,
-};
-
-static int __init zatm_init_module(void)
-{
- return pci_register_driver(&zatm_driver);
-}
-
-module_init(zatm_init_module);
-/* module_exit not defined so not unloadable */
diff --git a/drivers/atm/zatm.h b/drivers/atm/zatm.h
deleted file mode 100644
index 8204369fe825..000000000000
--- a/drivers/atm/zatm.h
+++ /dev/null
@@ -1,104 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/* drivers/atm/zatm.h - ZeitNet ZN122x device driver declarations */
-
-/* Written 1995-1998 by Werner Almesberger, EPFL LRC/ICA */
-
-
-#ifndef DRIVER_ATM_ZATM_H
-#define DRIVER_ATM_ZATM_H
-
-#include <linux/skbuff.h>
-#include <linux/atm.h>
-#include <linux/atmdev.h>
-#include <linux/sonet.h>
-#include <linux/pci.h>
-
-
-#define DEV_LABEL "zatm"
-
-#define MAX_AAL5_PDU 10240 /* allocate for AAL5 PDUs of this size */
-#define MAX_RX_SIZE_LD 14 /* ceil(log2((MAX_AAL5_PDU+47)/48)) */
-
-#define LOW_MARK 12 /* start adding new buffers if less than 12 */
-#define HIGH_MARK 30 /* stop adding buffers after reaching 30 */
-#define OFF_CNG_THRES 5 /* threshold for offset changes */
-
-#define RX_SIZE 2 /* RX lookup entry size (in bytes) */
-#define NR_POOLS 32 /* number of free buffer pointers */
-#define POOL_SIZE 8 /* buffer entry size (in bytes) */
-#define NR_SHAPERS 16 /* number of shapers */
-#define SHAPER_SIZE 4 /* shaper entry size (in bytes) */
-#define VC_SIZE 32 /* VC dsc (TX or RX) size (in bytes) */
-
-#define RING_ENTRIES 32 /* ring entries (without back pointer) */
-#define RING_WORDS 4 /* ring element size */
-#define RING_SIZE (sizeof(unsigned long)*(RING_ENTRIES+1)*RING_WORDS)
-
-#define NR_MBX 4 /* four mailboxes */
-#define MBX_RX_0 0 /* mailbox indices */
-#define MBX_RX_1 1
-#define MBX_TX_0 2
-#define MBX_TX_1 3
-
-struct zatm_vcc {
- /*-------------------------------- RX part */
- int rx_chan; /* RX channel, 0 if none */
- int pool; /* free buffer pool */
- /*-------------------------------- TX part */
- int tx_chan; /* TX channel, 0 if none */
- int shaper; /* shaper, <0 if none */
- struct sk_buff_head tx_queue; /* list of buffers in transit */
- wait_queue_head_t tx_wait; /* for close */
- u32 *ring; /* transmit ring */
- int ring_curr; /* current write position */
- int txing; /* number of transmits in progress */
- struct sk_buff_head backlog; /* list of buffers waiting for ring */
-};
-
-struct zatm_dev {
- /*-------------------------------- TX part */
- int tx_bw; /* remaining bandwidth */
- u32 free_shapers; /* bit set */
- int ubr; /* UBR shaper; -1 if none */
- int ubr_ref_cnt; /* number of VCs using UBR shaper */
- /*-------------------------------- RX part */
- int pool_ref[NR_POOLS]; /* free buffer pool usage counters */
- volatile struct sk_buff *last_free[NR_POOLS];
- /* last entry in respective pool */
- struct sk_buff_head pool[NR_POOLS];/* free buffer pools */
- struct zatm_pool_info pool_info[NR_POOLS]; /* pool information */
- /*-------------------------------- maps */
- struct atm_vcc **tx_map; /* TX VCCs */
- struct atm_vcc **rx_map; /* RX VCCs */
- int chans; /* map size, must be 2^n */
- /*-------------------------------- mailboxes */
- unsigned long mbx_start[NR_MBX];/* start addresses */
- dma_addr_t mbx_dma[NR_MBX];
- u16 mbx_end[NR_MBX]; /* end offset (in bytes) */
- /*-------------------------------- other pointers */
- u32 pool_base; /* Free buffer pool dsc (word addr) */
- /*-------------------------------- ZATM links */
- struct atm_dev *more; /* other ZATM devices */
- /*-------------------------------- general information */
- int mem; /* RAM on board (in bytes) */
- int khz; /* timer clock */
- int copper; /* PHY type */
- unsigned char irq; /* IRQ */
- unsigned int base; /* IO base address */
- struct pci_dev *pci_dev; /* PCI stuff */
- spinlock_t lock;
-};
-
-
-#define ZATM_DEV(d) ((struct zatm_dev *) (d)->dev_data)
-#define ZATM_VCC(d) ((struct zatm_vcc *) (d)->dev_data)
-
-
-struct zatm_skb_prv {
- struct atm_skb_data _; /* reserved */
- u32 *dsc; /* pointer to skb's descriptor */
-};
-
-#define ZATM_PRV_DSC(skb) (((struct zatm_skb_prv *) (skb)->cb)->dsc)
-
-#endif
diff --git a/include/uapi/linux/atm_zatm.h b/include/uapi/linux/atm_zatm.h
deleted file mode 100644
index 5135027b93c1..000000000000
--- a/include/uapi/linux/atm_zatm.h
+++ /dev/null
@@ -1,47 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
-/* atm_zatm.h - Driver-specific declarations of the ZATM driver (for use by
- driver-specific utilities) */
-
-/* Written 1995-1999 by Werner Almesberger, EPFL LRC/ICA */
-
-
-#ifndef LINUX_ATM_ZATM_H
-#define LINUX_ATM_ZATM_H
-
-/*
- * Note: non-kernel programs including this file must also include
- * sys/types.h for struct timeval
- */
-
-#include <linux/atmapi.h>
-#include <linux/atmioc.h>
-
-#define ZATM_GETPOOL _IOW('a',ATMIOC_SARPRV+1,struct atmif_sioc)
- /* get pool statistics */
-#define ZATM_GETPOOLZ _IOW('a',ATMIOC_SARPRV+2,struct atmif_sioc)
- /* get statistics and zero */
-#define ZATM_SETPOOL _IOW('a',ATMIOC_SARPRV+3,struct atmif_sioc)
- /* set pool parameters */
-
-struct zatm_pool_info {
- int ref_count; /* free buffer pool usage counters */
- int low_water,high_water; /* refill parameters */
- int rqa_count,rqu_count; /* queue condition counters */
- int offset,next_off; /* alignment optimizations: offset */
- int next_cnt,next_thres; /* repetition counter and threshold */
-};
-
-struct zatm_pool_req {
- int pool_num; /* pool number */
- struct zatm_pool_info info; /* actual information */
-};
-
-#define ZATM_OAM_POOL 0 /* free buffer pool for OAM cells */
-#define ZATM_AAL0_POOL 1 /* free buffer pool for AAL0 cells */
-#define ZATM_AAL5_POOL_BASE 2 /* first AAL5 free buffer pool */
-#define ZATM_LAST_POOL ZATM_AAL5_POOL_BASE+10 /* max. 64 kB */
-
-#define ZATM_TIMER_HISTORY_SIZE 16 /* number of timer adjustments to
- record; must be 2^n */
-
-#endif
--
2.34.1
^ permalink raw reply related [flat|nested] 7+ messages in thread
* Re: [PATCH net-next 3/6] net: atm: remove support for ZeitNet ZN122x ATM devices
2022-04-26 17:54 ` [PATCH net-next 3/6] net: atm: remove support for ZeitNet ZN122x " Jakub Kicinski
@ 2022-08-10 7:36 ` Jiri Slaby
2022-08-10 9:11 ` Arnd Bergmann
0 siblings, 1 reply; 7+ messages in thread
From: Jiri Slaby @ 2022-08-10 7:36 UTC (permalink / raw)
To: Jakub Kicinski, davem, pabeni
Cc: netdev, Chas Williams, linux-atm-general, Thomas Bogendoerfer,
linux-mips, arnd
On 26. 04. 22, 19:54, Jakub Kicinski wrote:
> This driver received nothing but automated fixes in the last 15 years.
> Since it's using virt_to_bus it's unlikely to be used on any modern
> platform.
...
> delete mode 100644 include/uapi/linux/atm_zatm.h
This unfortunately breaks linux-atm:
zntune.c:18:10: fatal error: linux/atm_zatm.h: No such file or directory
The source does also:
ioctl(s,ZATM_SETPOOL,&sioc)
ioctl(s,zero ? ZATM_GETPOOLZ : ZATM_GETPOOL,&sioc)
etc.
So we should likely revert the below:
> --- a/include/uapi/linux/atm_zatm.h
> +++ /dev/null
> @@ -1,47 +0,0 @@
> -/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
> -/* atm_zatm.h - Driver-specific declarations of the ZATM driver (for use by
> - driver-specific utilities) */
> -
> -/* Written 1995-1999 by Werner Almesberger, EPFL LRC/ICA */
> -
> -
> -#ifndef LINUX_ATM_ZATM_H
> -#define LINUX_ATM_ZATM_H
> -
> -/*
> - * Note: non-kernel programs including this file must also include
> - * sys/types.h for struct timeval
> - */
> -
> -#include <linux/atmapi.h>
> -#include <linux/atmioc.h>
> -
> -#define ZATM_GETPOOL _IOW('a',ATMIOC_SARPRV+1,struct atmif_sioc)
> - /* get pool statistics */
> -#define ZATM_GETPOOLZ _IOW('a',ATMIOC_SARPRV+2,struct atmif_sioc)
> - /* get statistics and zero */
> -#define ZATM_SETPOOL _IOW('a',ATMIOC_SARPRV+3,struct atmif_sioc)
> - /* set pool parameters */
> -
> -struct zatm_pool_info {
> - int ref_count; /* free buffer pool usage counters */
> - int low_water,high_water; /* refill parameters */
> - int rqa_count,rqu_count; /* queue condition counters */
> - int offset,next_off; /* alignment optimizations: offset */
> - int next_cnt,next_thres; /* repetition counter and threshold */
> -};
> -
> -struct zatm_pool_req {
> - int pool_num; /* pool number */
> - struct zatm_pool_info info; /* actual information */
> -};
> -
> -#define ZATM_OAM_POOL 0 /* free buffer pool for OAM cells */
> -#define ZATM_AAL0_POOL 1 /* free buffer pool for AAL0 cells */
> -#define ZATM_AAL5_POOL_BASE 2 /* first AAL5 free buffer pool */
> -#define ZATM_LAST_POOL ZATM_AAL5_POOL_BASE+10 /* max. 64 kB */
> -
> -#define ZATM_TIMER_HISTORY_SIZE 16 /* number of timer adjustments to
> - record; must be 2^n */
> -
> -#endif
thanks,
--
js
suse labs
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH net-next 3/6] net: atm: remove support for ZeitNet ZN122x ATM devices
2022-08-10 7:36 ` Jiri Slaby
@ 2022-08-10 9:11 ` Arnd Bergmann
2022-08-10 16:42 ` Jakub Kicinski
0 siblings, 1 reply; 7+ messages in thread
From: Arnd Bergmann @ 2022-08-10 9:11 UTC (permalink / raw)
To: Jiri Slaby
Cc: Jakub Kicinski, davem, pabeni, netdev, Chas Williams,
linux-atm-general, Thomas Bogendoerfer, linux-mips, arnd
On Wed, Aug 10, 2022 at 9:36 AM Jiri Slaby <jirislaby@kernel.org> wrote:
>
> On 26. 04. 22, 19:54, Jakub Kicinski wrote:
> > This driver received nothing but automated fixes in the last 15 years.
> > Since it's using virt_to_bus it's unlikely to be used on any modern
> > platform.
> ...
> > delete mode 100644 include/uapi/linux/atm_zatm.h
>
> This unfortunately breaks linux-atm:
> zntune.c:18:10: fatal error: linux/atm_zatm.h: No such file or directory
>
> The source does also:
> ioctl(s,ZATM_SETPOOL,&sioc)
> ioctl(s,zero ? ZATM_GETPOOLZ : ZATM_GETPOOL,&sioc)
> etc.
>
> So we should likely revert the below:
I suppose there is no chance of also getting the linux-atm package updated
to not include those source files, right? The last release I found on
sourceforge
is 12 years old, but maybe I was looking in the wrong place.
Arnd
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH net-next 3/6] net: atm: remove support for ZeitNet ZN122x ATM devices
2022-08-10 9:11 ` Arnd Bergmann
@ 2022-08-10 16:42 ` Jakub Kicinski
2022-08-11 5:19 ` Jiri Slaby
0 siblings, 1 reply; 7+ messages in thread
From: Jakub Kicinski @ 2022-08-10 16:42 UTC (permalink / raw)
To: Arnd Bergmann
Cc: Jiri Slaby, davem, pabeni, netdev, Chas Williams,
linux-atm-general, Thomas Bogendoerfer, linux-mips
On Wed, 10 Aug 2022 11:11:32 +0200 Arnd Bergmann wrote:
> > This unfortunately breaks linux-atm:
> > zntune.c:18:10: fatal error: linux/atm_zatm.h: No such file or directory
> >
> > The source does also:
> > ioctl(s,ZATM_SETPOOL,&sioc)
> > ioctl(s,zero ? ZATM_GETPOOLZ : ZATM_GETPOOL,&sioc)
> > etc.
> >
> > So we should likely revert the below:
>
> I suppose there is no chance of also getting the linux-atm package updated
> to not include those source files, right? The last release I found on
> sourceforge
> is 12 years old, but maybe I was looking in the wrong place.
Is linux-atm used for something remotely modern? PPPoA? Maybe it's
time to ditch it completely? I'll send the revert in any case.
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH net-next 3/6] net: atm: remove support for ZeitNet ZN122x ATM devices
2022-08-10 16:42 ` Jakub Kicinski
@ 2022-08-11 5:19 ` Jiri Slaby
2022-08-11 9:18 ` Arnd Bergmann
0 siblings, 1 reply; 7+ messages in thread
From: Jiri Slaby @ 2022-08-11 5:19 UTC (permalink / raw)
To: Jakub Kicinski, Arnd Bergmann
Cc: davem, pabeni, netdev, Chas Williams, linux-atm-general,
Thomas Bogendoerfer, linux-mips
On 10. 08. 22, 18:42, Jakub Kicinski wrote:
> On Wed, 10 Aug 2022 11:11:32 +0200 Arnd Bergmann wrote:
>>> This unfortunately breaks linux-atm:
>>> zntune.c:18:10: fatal error: linux/atm_zatm.h: No such file or directory
>>>
>>> The source does also:
>>> ioctl(s,ZATM_SETPOOL,&sioc)
>>> ioctl(s,zero ? ZATM_GETPOOLZ : ZATM_GETPOOL,&sioc)
>>> etc.
>>>
>>> So we should likely revert the below:
>>
>> I suppose there is no chance of also getting the linux-atm package updated
>> to not include those source files, right? The last release I found on
>> sourceforge
>> is 12 years old, but maybe I was looking in the wrong place.
>
> Is linux-atm used for something remotely modern? PPPoA? Maybe it's
> time to ditch it completely? I'll send the revert in any case.
Sorry, I have no idea. openSUSE is just a provider of an rpm -- if there
any users? Who knows...
thanks,
--
js
suse labs
^ permalink raw reply [flat|nested] 7+ messages in thread
* Re: [PATCH net-next 3/6] net: atm: remove support for ZeitNet ZN122x ATM devices
2022-08-11 5:19 ` Jiri Slaby
@ 2022-08-11 9:18 ` Arnd Bergmann
0 siblings, 0 replies; 7+ messages in thread
From: Arnd Bergmann @ 2022-08-11 9:18 UTC (permalink / raw)
To: Jiri Slaby
Cc: Jakub Kicinski, Arnd Bergmann, davem, pabeni, netdev,
Chas Williams, linux-atm-general, Thomas Bogendoerfer, linux-mips
On Thu, Aug 11, 2022 at 7:19 AM Jiri Slaby <jirislaby@kernel.org> wrote:
> On 10. 08. 22, 18:42, Jakub Kicinski wrote:
> > On Wed, 10 Aug 2022 11:11:32 +0200 Arnd Bergmann wrote:
> >>> This unfortunately breaks linux-atm:
> >>> zntune.c:18:10: fatal error: linux/atm_zatm.h: No such file or directory
> >>>
> >>> The source does also:
> >>> ioctl(s,ZATM_SETPOOL,&sioc)
> >>> ioctl(s,zero ? ZATM_GETPOOLZ : ZATM_GETPOOL,&sioc)
> >>> etc.
> >>>
> >>> So we should likely revert the below:
> >>
> >> I suppose there is no chance of also getting the linux-atm package updated
> >> to not include those source files, right? The last release I found on
> >> sourceforge
> >> is 12 years old, but maybe I was looking in the wrong place.
> >
> > Is linux-atm used for something remotely modern? PPPoA? Maybe it's
> > time to ditch it completely? I'll send the revert in any case.
>
> Sorry, I have no idea. openSUSE is just a provider of an rpm -- if there
> any users? Who knows...
I think in theory this is the subsystem that DSL drivers would use, but
there is only one driver for the "Solos ADSL2+".
OpenWRT used to support the TI AR7 platform (later owned by Infineon,
Lantiq, and Intel, now Maxlinear) with the "sangam-atm" driver for DSL,
but that driver was never available in mainline Linux and is now gone
from OpenWRT as well.
It appears that the later hardware that is still supported uses a custom
atm driver implementation rather than the in-kernel subsystem, using
a different set of ioctls:
https://git.openwrt.org/?p=openwrt/openwrt.git;a=tree;f=package/kernel/lantiq/ltq-atm/src
There are also DSL SoCs from (at least) Broadcom, Realtek, Mediatek and
Qualcomm, but no open source drivers, so I guess they probably all
use their own kernel subsystems.
Arnd
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2022-08-11 9:19 UTC | newest]
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2022-04-26 17:54 ` [PATCH net-next 1/6] net: atm: remove support for Fujitsu FireStream ATM devices Jakub Kicinski
2022-04-26 17:54 ` [PATCH net-next 3/6] net: atm: remove support for ZeitNet ZN122x " Jakub Kicinski
2022-08-10 7:36 ` Jiri Slaby
2022-08-10 9:11 ` Arnd Bergmann
2022-08-10 16:42 ` Jakub Kicinski
2022-08-11 5:19 ` Jiri Slaby
2022-08-11 9:18 ` Arnd Bergmann
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