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SubjectPATCH: 2.5.60 Remove i2o-lan
Date
From
There are no known cards outside of labs that used i2o_lan. The only
exception is the Redcreek VPN, which has its own driver anyway. Note
i2o_lan.h is left as i2o_config can still understand i2o_lan devices
such as the RedCreek.

diff -u --new-file --recursive --exclude-from /usr/src/exclude linux-2.5.60-ref/drivers/message/i2o/Kconfig linux-2.5.60-ac1/drivers/message/i2o/Kconfig
--- linux-2.5.60-ref/drivers/message/i2o/Kconfig 2003-02-14 21:21:41.000000000 +0000
+++ linux-2.5.60-ac1/drivers/message/i2o/Kconfig 2003-02-14 19:11:23.000000000 +0000
@@ -50,19 +50,6 @@
whenever you want). If you want to compile it as a module, say M
here and read <file:Documentation/modules.txt>.

-config I2O_LAN
- tristate "I2O LAN OSM"
- depends on NET && I2O
- help
- Include support for the LAN OSM. You will also need to include
- support for token ring or FDDI if you wish to use token ring or FDDI
- I2O cards with this driver.
-
- This support is also available as a module called i2o_lan ( = code
- which can be inserted in and removed from the running kernel
- whenever you want). If you want to compile it as a module, say M
- here and read <file:Documentation/modules.txt>.
-
config I2O_SCSI
tristate "I2O SCSI OSM"
depends on I2O && SCSI
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux-2.5.60-ref/drivers/message/i2o/Makefile linux-2.5.60-ac1/drivers/message/i2o/Makefile
--- linux-2.5.60-ref/drivers/message/i2o/Makefile 2003-02-14 21:21:41.000000000 +0000
+++ linux-2.5.60-ac1/drivers/message/i2o/Makefile 2003-02-14 19:11:44.000000000 +0000
@@ -8,6 +8,5 @@
obj-$(CONFIG_I2O_PCI) += i2o_pci.o
obj-$(CONFIG_I2O) += i2o_core.o i2o_config.o
obj-$(CONFIG_I2O_BLOCK) += i2o_block.o
-obj-$(CONFIG_I2O_LAN) += i2o_lan.o
obj-$(CONFIG_I2O_SCSI) += i2o_scsi.o
obj-$(CONFIG_I2O_PROC) += i2o_proc.o
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux-2.5.60-ref/drivers/message/i2o/i2o_lan.c linux-2.5.60-ac1/drivers/message/i2o/i2o_lan.c
--- linux-2.5.60-ref/drivers/message/i2o/i2o_lan.c 2003-02-14 21:21:41.000000000 +0000
+++ linux-2.5.60-ac1/drivers/message/i2o/i2o_lan.c 1970-01-01 01:00:00.000000000 +0100
@@ -1,1575 +0,0 @@
-/*
- * drivers/i2o/i2o_lan.c
- *
- * I2O LAN CLASS OSM May 26th 2000
- *
- * (C) Copyright 1999, 2000 University of Helsinki,
- * Department of Computer Science
- *
- * This code is still under development / test.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- *
- * Authors: Auvo Häkkinen <Auvo.Hakkinen@cs.Helsinki.FI>
- * Fixes: Juha Sievänen <Juha.Sievanen@cs.Helsinki.FI>
- * Taneli Vähäkangas <Taneli.Vahakangas@cs.Helsinki.FI>
- * Deepak Saxena <deepak@plexity.net>
- *
- * Tested: in FDDI environment (using SysKonnect's DDM)
- * in Gigabit Eth environment (using SysKonnect's DDM)
- * in Fast Ethernet environment (using Intel 82558 DDM)
- *
- * TODO: tests for other LAN classes (Token Ring, Fibre Channel)
- */
-
-#error Please convert me to Documentation/DMA-mapping.txt
-
-#include <linux/config.h>
-#include <linux/module.h>
-
-#include <linux/pci.h>
-
-#include <linux/netdevice.h>
-#include <linux/etherdevice.h>
-#include <linux/fddidevice.h>
-#include <linux/trdevice.h>
-#include <linux/fcdevice.h>
-
-#include <linux/skbuff.h>
-#include <linux/if_arp.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/spinlock.h>
-#include <linux/workqueue.h>
-#include <asm/io.h>
-
-#include <linux/errno.h>
-
-#include <linux/i2o.h>
-#include "i2o_lan.h"
-
-//#define DRIVERDEBUG
-#ifdef DRIVERDEBUG
-#define dprintk(s, args...) printk(s, ## args)
-#else
-#define dprintk(s, args...)
-#endif
-
-/* The following module parameters are used as default values
- * for per interface values located in the net_device private area.
- * Private values are changed via /proc filesystem.
- */
-static u32 max_buckets_out = I2O_LAN_MAX_BUCKETS_OUT;
-static u32 bucket_thresh = I2O_LAN_BUCKET_THRESH;
-static u32 rx_copybreak = I2O_LAN_RX_COPYBREAK;
-static u8 tx_batch_mode = I2O_LAN_TX_BATCH_MODE;
-static u32 i2o_event_mask = I2O_LAN_EVENT_MASK;
-
-#define MAX_LAN_CARDS 16
-static struct net_device *i2o_landevs[MAX_LAN_CARDS+1];
-static int unit = -1; /* device unit number */
-
-static void i2o_lan_reply(struct i2o_handler *h, struct i2o_controller *iop, struct i2o_message *m);
-static void i2o_lan_send_post_reply(struct i2o_handler *h, struct i2o_controller *iop, struct i2o_message *m);
-static int i2o_lan_receive_post(struct net_device *dev);
-static void i2o_lan_receive_post_reply(struct i2o_handler *h, struct i2o_controller *iop, struct i2o_message *m);
-static void i2o_lan_release_buckets(struct net_device *dev, u32 *msg);
-
-static int i2o_lan_reset(struct net_device *dev);
-static void i2o_lan_handle_event(struct net_device *dev, u32 *msg);
-
-/* Structures to register handlers for the incoming replies. */
-
-static struct i2o_handler i2o_lan_send_handler = {
- i2o_lan_send_post_reply, // For send replies
- NULL,
- NULL,
- NULL,
- "I2O LAN OSM send",
- -1,
- I2O_CLASS_LAN
-};
-static int lan_send_context;
-
-static struct i2o_handler i2o_lan_receive_handler = {
- i2o_lan_receive_post_reply, // For receive replies
- NULL,
- NULL,
- NULL,
- "I2O LAN OSM receive",
- -1,
- I2O_CLASS_LAN
-};
-static int lan_receive_context;
-
-static struct i2o_handler i2o_lan_handler = {
- i2o_lan_reply, // For other replies
- NULL,
- NULL,
- NULL,
- "I2O LAN OSM",
- -1,
- I2O_CLASS_LAN
-};
-static int lan_context;
-
-struct DECLARE_WORK(run_i2o_post_buckets_task,
- (void (*)(void *)) run_task_queue, NULL);
-
-/* Functions to handle message failures and transaction errors:
-==============================================================*/
-
-/*
- * i2o_lan_handle_failure(): Fail bit has been set since IOP's message
- * layer cannot deliver the request to the target, or the target cannot
- * process the request.
- */
-static void i2o_lan_handle_failure(struct net_device *dev, u32 *msg)
-{
- struct i2o_lan_local *priv = (struct i2o_lan_local *)dev->priv;
- struct i2o_device *i2o_dev = priv->i2o_dev;
- struct i2o_controller *iop = i2o_dev->controller;
-
- u32 *preserved_msg = (u32*)(iop->mem_offset + msg[7]);
- u32 *sgl_elem = &preserved_msg[4];
- struct sk_buff *skb = NULL;
- u8 le_flag;
-
- i2o_report_status(KERN_INFO, dev->name, msg);
-
- /* If PacketSend failed, free sk_buffs reserved by upper layers */
-
- if (msg[1] >> 24 == LAN_PACKET_SEND) {
- do {
- skb = (struct sk_buff *)(sgl_elem[1]);
- dev_kfree_skb_irq(skb);
-
- atomic_dec(&priv->tx_out);
-
- le_flag = *sgl_elem >> 31;
- sgl_elem +=3;
- } while (le_flag == 0); /* Last element flag not set */
-
- if (netif_queue_stopped(dev))
- netif_wake_queue(dev);
- }
-
- /* If ReceivePost failed, free sk_buffs we have reserved */
-
- if (msg[1] >> 24 == LAN_RECEIVE_POST) {
- do {
- skb = (struct sk_buff *)(sgl_elem[1]);
- dev_kfree_skb_irq(skb);
-
- atomic_dec(&priv->buckets_out);
-
- le_flag = *sgl_elem >> 31;
- sgl_elem +=3;
- } while (le_flag == 0); /* Last element flag not set */
- }
-
- /* Release the preserved msg frame by resubmitting it as a NOP */
-
- preserved_msg[0] = THREE_WORD_MSG_SIZE | SGL_OFFSET_0;
- preserved_msg[1] = I2O_CMD_UTIL_NOP << 24 | HOST_TID << 12 | 0;
- preserved_msg[2] = 0;
- i2o_post_message(iop, msg[7]);
-}
-/*
- * i2o_lan_handle_transaction_error(): IOP or DDM has rejected the request
- * for general cause (format error, bad function code, insufficient resources,
- * etc.). We get one transaction_error for each failed transaction.
- */
-static void i2o_lan_handle_transaction_error(struct net_device *dev, u32 *msg)
-{
- struct i2o_lan_local *priv = (struct i2o_lan_local *)dev->priv;
- struct sk_buff *skb;
-
- i2o_report_status(KERN_INFO, dev->name, msg);
-
- /* If PacketSend was rejected, free sk_buff reserved by upper layers */
-
- if (msg[1] >> 24 == LAN_PACKET_SEND) {
- skb = (struct sk_buff *)(msg[3]); // TransactionContext
- dev_kfree_skb_irq(skb);
- atomic_dec(&priv->tx_out);
-
- if (netif_queue_stopped(dev))
- netif_wake_queue(dev);
- }
-
- /* If ReceivePost was rejected, free sk_buff we have reserved */
-
- if (msg[1] >> 24 == LAN_RECEIVE_POST) {
- skb = (struct sk_buff *)(msg[3]);
- dev_kfree_skb_irq(skb);
- atomic_dec(&priv->buckets_out);
- }
-}
-
-/*
- * i2o_lan_handle_status(): Common parts of handling a not succeeded request
- * (status != SUCCESS).
- */
-static int i2o_lan_handle_status(struct net_device *dev, u32 *msg)
-{
- /* Fail bit set? */
-
- if (msg[0] & MSG_FAIL) {
- i2o_lan_handle_failure(dev, msg);
- return -1;
- }
-
- /* Message rejected for general cause? */
-
- if ((msg[4]>>24) == I2O_REPLY_STATUS_TRANSACTION_ERROR) {
- i2o_lan_handle_transaction_error(dev, msg);
- return -1;
- }
-
- /* Else have to handle it in the callback function */
-
- return 0;
-}
-
-/* Callback functions called from the interrupt routine:
-=======================================================*/
-
-/*
- * i2o_lan_send_post_reply(): Callback function to handle PostSend replies.
- */
-static void i2o_lan_send_post_reply(struct i2o_handler *h,
- struct i2o_controller *iop, struct i2o_message *m)
-{
- u32 *msg = (u32 *)m;
- u8 unit = (u8)(msg[2]>>16); // InitiatorContext
- struct net_device *dev = i2o_landevs[unit];
- struct i2o_lan_local *priv = (struct i2o_lan_local *)dev->priv;
- u8 trl_count = msg[3] & 0x000000FF;
-
- if ((msg[4] >> 24) != I2O_REPLY_STATUS_SUCCESS) {
- if (i2o_lan_handle_status(dev, msg))
- return;
- }
-
-#ifdef DRIVERDEBUG
- i2o_report_status(KERN_INFO, dev->name, msg);
-#endif
-
- /* DDM has handled transmit request(s), free sk_buffs.
- * We get similar single transaction reply also in error cases
- * (except if msg failure or transaction error).
- */
- while (trl_count) {
- dev_kfree_skb_irq((struct sk_buff *)msg[4 + trl_count]);
- dprintk(KERN_INFO "%s: tx skb freed (trl_count=%d).\n",
- dev->name, trl_count);
- atomic_dec(&priv->tx_out);
- trl_count--;
- }
-
- /* If priv->tx_out had reached tx_max_out, the queue was stopped */
-
- if (netif_queue_stopped(dev))
- netif_wake_queue(dev);
-}
-
-/*
- * i2o_lan_receive_post_reply(): Callback function to process incoming packets.
- */
-static void i2o_lan_receive_post_reply(struct i2o_handler *h,
- struct i2o_controller *iop, struct i2o_message *m)
-{
- u32 *msg = (u32 *)m;
- u8 unit = (u8)(msg[2]>>16); // InitiatorContext
- struct net_device *dev = i2o_landevs[unit];
-
- struct i2o_lan_local *priv = (struct i2o_lan_local *)dev->priv;
- struct i2o_bucket_descriptor *bucket = (struct i2o_bucket_descriptor *)&msg[6];
- struct i2o_packet_info *packet;
- u8 trl_count = msg[3] & 0x000000FF;
- struct sk_buff *skb, *old_skb;
- unsigned long flags = 0;
-
- if ((msg[4] >> 24) != I2O_REPLY_STATUS_SUCCESS) {
- if (i2o_lan_handle_status(dev, msg))
- return;
-
- i2o_lan_release_buckets(dev, msg);
- return;
- }
-
-#ifdef DRIVERDEBUG
- i2o_report_status(KERN_INFO, dev->name, msg);
-#endif
-
- /* Else we are receiving incoming post. */
-
- while (trl_count--) {
- skb = (struct sk_buff *)bucket->context;
- packet = (struct i2o_packet_info *)bucket->packet_info;
- atomic_dec(&priv->buckets_out);
-
- /* Sanity checks: Any weird characteristics in bucket? */
-
- if (packet->flags & 0x0f || ! packet->flags & 0x40) {
- if (packet->flags & 0x01)
- printk(KERN_WARNING "%s: packet with errors, error code=0x%02x.\n",
- dev->name, packet->status & 0xff);
-
- /* The following shouldn't happen, unless parameters in
- * LAN_OPERATION group are changed during the run time.
- */
- if (packet->flags & 0x0c)
- printk(KERN_DEBUG "%s: multi-bucket packets not supported!\n",
- dev->name);
-
- if (! packet->flags & 0x40)
- printk(KERN_DEBUG "%s: multiple packets in a bucket not supported!\n",
- dev->name);
-
- dev_kfree_skb_irq(skb);
-
- bucket++;
- continue;
- }
-
- /* Copy short packet to a new skb */
-
- if (packet->len < priv->rx_copybreak) {
- old_skb = skb;
- skb = (struct sk_buff *)dev_alloc_skb(packet->len+2);
- if (skb == NULL) {
- printk(KERN_ERR "%s: Can't allocate skb.\n", dev->name);
- return;
- }
- skb_reserve(skb, 2);
- memcpy(skb_put(skb, packet->len), old_skb->data, packet->len);
-
- spin_lock_irqsave(&priv->fbl_lock, flags);
- if (priv->i2o_fbl_tail < I2O_LAN_MAX_BUCKETS_OUT)
- priv->i2o_fbl[++priv->i2o_fbl_tail] = old_skb;
- else
- dev_kfree_skb_irq(old_skb);
-
- spin_unlock_irqrestore(&priv->fbl_lock, flags);
- } else
- skb_put(skb, packet->len);
-
- /* Deliver to upper layers */
-
- skb->dev = dev;
- skb->protocol = priv->type_trans(skb, dev);
- netif_rx(skb);
-
- dev->last_rx = jiffies;
-
- dprintk(KERN_INFO "%s: Incoming packet (%d bytes) delivered "
- "to upper level.\n", dev->name, packet->len);
-
- bucket++; // to next Packet Descriptor Block
- }
-
-#ifdef DRIVERDEBUG
- if (msg[5] == 0)
- printk(KERN_INFO "%s: DDM out of buckets (priv->count = %d)!\n",
- dev->name, atomic_read(&priv->buckets_out));
-#endif
-
- /* If DDM has already consumed bucket_thresh buckets, post new ones */
-
- if (atomic_read(&priv->buckets_out) <= priv->max_buckets_out - priv->bucket_thresh) {
- run_i2o_post_buckets_task.data = (void *)dev;
- schedule_work(&run_i2o_post_buckets_task);
- }
-
- return;
-}
-
-/*
- * i2o_lan_reply(): Callback function to handle other incoming messages
- * except SendPost and ReceivePost.
- */
-static void i2o_lan_reply(struct i2o_handler *h, struct i2o_controller *iop,
- struct i2o_message *m)
-{
- u32 *msg = (u32 *)m;
- u8 unit = (u8)(msg[2]>>16); // InitiatorContext
- struct net_device *dev = i2o_landevs[unit];
-
- if ((msg[4] >> 24) != I2O_REPLY_STATUS_SUCCESS) {
- if (i2o_lan_handle_status(dev, msg))
- return;
-
- /* In other error cases just report and continue */
-
- i2o_report_status(KERN_INFO, dev->name, msg);
- }
-
-#ifdef DRIVERDEBUG
- i2o_report_status(KERN_INFO, dev->name, msg);
-#endif
- switch (msg[1] >> 24) {
- case LAN_RESET:
- case LAN_SUSPEND:
- /* default reply without payload */
- break;
-
- case I2O_CMD_UTIL_EVT_REGISTER:
- case I2O_CMD_UTIL_EVT_ACK:
- i2o_lan_handle_event(dev, msg);
- break;
-
- case I2O_CMD_UTIL_PARAMS_SET:
- /* default reply, results in ReplyPayload (not examined) */
- switch (msg[3] >> 16) {
- case 1: dprintk(KERN_INFO "%s: Reply to set MAC filter mask.\n",
- dev->name);
- break;
- case 2: dprintk(KERN_INFO "%s: Reply to set MAC table.\n",
- dev->name);
- break;
- default: printk(KERN_WARNING "%s: Bad group 0x%04X\n",
- dev->name,msg[3] >> 16);
- }
- break;
-
- default:
- printk(KERN_ERR "%s: No handler for the reply.\n",
- dev->name);
- i2o_report_status(KERN_INFO, dev->name, msg);
- }
-}
-
-/* Functions used by the above callback functions:
-=================================================*/
-/*
- * i2o_lan_release_buckets(): Free unused buckets (sk_buffs).
- */
-static void i2o_lan_release_buckets(struct net_device *dev, u32 *msg)
-{
- struct i2o_lan_local *priv = (struct i2o_lan_local *)dev->priv;
- u8 trl_elem_size = (u8)(msg[3]>>8 & 0x000000FF);
- u8 trl_count = (u8)(msg[3] & 0x000000FF);
- u32 *pskb = &msg[6];
-
- while (trl_count--) {
- dprintk(KERN_DEBUG "%s: Releasing unused rx skb %p (trl_count=%d).\n",
- dev->name, (struct sk_buff*)(*pskb),trl_count+1);
- dev_kfree_skb_irq((struct sk_buff *)(*pskb));
- pskb += 1 + trl_elem_size;
- atomic_dec(&priv->buckets_out);
- }
-}
-
-/*
- * i2o_lan_event_reply(): Handle events.
- */
-static void i2o_lan_handle_event(struct net_device *dev, u32 *msg)
-{
- struct i2o_lan_local *priv = (struct i2o_lan_local *)dev->priv;
- struct i2o_device *i2o_dev = priv->i2o_dev;
- struct i2o_controller *iop = i2o_dev->controller;
- u32 max_evt_data_size =iop->status_block->inbound_frame_size-5;
- struct i2o_reply {
- u32 header[4];
- u32 evt_indicator;
- u32 data[max_evt_data_size];
- } *evt = (struct i2o_reply *)msg;
- int evt_data_len = ((msg[0]>>16) - 5) * 4; /* real size*/
-
- printk(KERN_INFO "%s: I2O event - ", dev->name);
-
- if (msg[1]>>24 == I2O_CMD_UTIL_EVT_ACK) {
- printk("Event acknowledgement reply.\n");
- return;
- }
-
- /* Else evt->function == I2O_CMD_UTIL_EVT_REGISTER) */
-
- switch (evt->evt_indicator) {
- case I2O_EVT_IND_STATE_CHANGE: {
- struct state_data {
- u16 status;
- u8 state;
- u8 data;
- } *evt_data = (struct state_data *)(evt->data[0]);
-
- printk("State chance 0x%08x.\n", evt->data[0]);
-
- /* If the DDM is in error state, recovery may be
- * possible if status = Transmit or Receive Control
- * Unit Inoperable.
- */
- if (evt_data->state==0x05 && evt_data->status==0x0003)
- i2o_lan_reset(dev);
- break;
- }
-
- case I2O_EVT_IND_FIELD_MODIFIED: {
- u16 *work16 = (u16 *)evt->data;
- printk("Group 0x%04x, field %d changed.\n", work16[0], work16[1]);
- break;
- }
-
- case I2O_EVT_IND_VENDOR_EVT: {
- int i;
- printk("Vendor event:\n");
- for (i = 0; i < evt_data_len / 4; i++)
- printk(" 0x%08x\n", evt->data[i]);
- break;
- }
-
- case I2O_EVT_IND_DEVICE_RESET:
- /* Spec 2.0 p. 6-121:
- * The event of _DEVICE_RESET should also be responded
- */
- printk("Device reset.\n");
- if (i2o_event_ack(iop, msg) < 0)
- printk("%s: Event Acknowledge timeout.\n", dev->name);
- break;
-
-#if 0
- case I2O_EVT_IND_EVT_MASK_MODIFIED:
- printk("Event mask modified, 0x%08x.\n", evt->data[0]);
- break;
-
- case I2O_EVT_IND_GENERAL_WARNING:
- printk("General warning 0x%04x.\n", evt->data[0]);
- break;
-
- case I2O_EVT_IND_CONFIGURATION_FLAG:
- printk("Configuration requested.\n");
- break;
-
- case I2O_EVT_IND_CAPABILITY_CHANGE:
- printk("Capability change 0x%04x.\n", evt->data[0]);
- break;
-
- case I2O_EVT_IND_DEVICE_STATE:
- printk("Device state changed 0x%08x.\n", evt->data[0]);
- break;
-#endif
- case I2O_LAN_EVT_LINK_DOWN:
- netif_carrier_off(dev);
- printk("Link to the physical device is lost.\n");
- break;
-
- case I2O_LAN_EVT_LINK_UP:
- netif_carrier_on(dev);
- printk("Link to the physical device is (re)established.\n");
- break;
-
- case I2O_LAN_EVT_MEDIA_CHANGE:
- printk("Media change.\n");
- break;
- default:
- printk("0x%08x. No handler.\n", evt->evt_indicator);
- }
-}
-
-/*
- * i2o_lan_receive_post(): Post buckets to receive packets.
- */
-static int i2o_lan_receive_post(struct net_device *dev)
-{
- struct i2o_lan_local *priv = (struct i2o_lan_local *)dev->priv;
- struct i2o_device *i2o_dev = priv->i2o_dev;
- struct i2o_controller *iop = i2o_dev->controller;
- struct sk_buff *skb;
- u32 m, *msg;
- u32 bucket_len = (dev->mtu + dev->hard_header_len);
- u32 total = priv->max_buckets_out - atomic_read(&priv->buckets_out);
- u32 bucket_count;
- u32 *sgl_elem;
- unsigned long flags;
-
- /* Send (total/bucket_count) separate I2O requests */
-
- while (total) {
- m = I2O_POST_READ32(iop);
- if (m == 0xFFFFFFFF)
- return -ETIMEDOUT;
- msg = (u32 *)(iop->mem_offset + m);
-
- bucket_count = (total >= priv->sgl_max) ? priv->sgl_max : total;
- total -= bucket_count;
- atomic_add(bucket_count, &priv->buckets_out);
-
- dprintk(KERN_INFO "%s: Sending %d buckets (size %d) to LAN DDM.\n",
- dev->name, bucket_count, bucket_len);
-
- /* Fill in the header */
-
- __raw_writel(I2O_MESSAGE_SIZE(4 + 3 * bucket_count) | SGL_OFFSET_4, msg);
- __raw_writel(LAN_RECEIVE_POST<<24 | HOST_TID<<12 | i2o_dev->lct_data.tid, msg+1);
- __raw_writel(priv->unit << 16 | lan_receive_context, msg+2);
- __raw_writel(bucket_count, msg+3);
- sgl_elem = &msg[4];
-
- /* Fill in the payload - contains bucket_count SGL elements */
-
- while (bucket_count--) {
- spin_lock_irqsave(&priv->fbl_lock, flags);
- if (priv->i2o_fbl_tail >= 0)
- skb = priv->i2o_fbl[priv->i2o_fbl_tail--];
- else {
- skb = dev_alloc_skb(bucket_len + 2);
- if (skb == NULL) {
- spin_unlock_irqrestore(&priv->fbl_lock, flags);
- return -ENOMEM;
- }
- skb_reserve(skb, 2);
- }
- spin_unlock_irqrestore(&priv->fbl_lock, flags);
-
- __raw_writel(0x51000000 | bucket_len, sgl_elem);
- __raw_writel((u32)skb, sgl_elem+1);
- __raw_writel(virt_to_bus(skb->data), sgl_elem+2);
- sgl_elem += 3;
- }
-
- /* set LE flag and post */
- __raw_writel(__raw_readl(sgl_elem-3) | 0x80000000, (sgl_elem-3));
- i2o_post_message(iop, m);
- }
-
- return 0;
-}
-
-/* Functions called from the network stack, and functions called by them:
-========================================================================*/
-
-/*
- * i2o_lan_reset(): Reset the LAN adapter into the operational state and
- * restore it to full operation.
- */
-static int i2o_lan_reset(struct net_device *dev)
-{
- struct i2o_lan_local *priv = (struct i2o_lan_local *)dev->priv;
- struct i2o_device *i2o_dev = priv->i2o_dev;
- struct i2o_controller *iop = i2o_dev->controller;
- u32 msg[5];
-
- dprintk(KERN_INFO "%s: LAN RESET MESSAGE.\n", dev->name);
- msg[0] = FIVE_WORD_MSG_SIZE | SGL_OFFSET_0;
- msg[1] = LAN_RESET<<24 | HOST_TID<<12 | i2o_dev->lct_data.tid;
- msg[2] = priv->unit << 16 | lan_context; // InitiatorContext
- msg[3] = 0; // TransactionContext
- msg[4] = 0; // Keep posted buckets
-
- if (i2o_post_this(iop, msg, sizeof(msg)) < 0)
- return -ETIMEDOUT;
-
- return 0;
-}
-
-/*
- * i2o_lan_suspend(): Put LAN adapter into a safe, non-active state.
- * IOP replies to any LAN class message with status error_no_data_transfer
- * / suspended.
- */
-static int i2o_lan_suspend(struct net_device *dev)
-{
- struct i2o_lan_local *priv = (struct i2o_lan_local *)dev->priv;
- struct i2o_device *i2o_dev = priv->i2o_dev;
- struct i2o_controller *iop = i2o_dev->controller;
- u32 msg[5];
-
- dprintk(KERN_INFO "%s: LAN SUSPEND MESSAGE.\n", dev->name);
- msg[0] = FIVE_WORD_MSG_SIZE | SGL_OFFSET_0;
- msg[1] = LAN_SUSPEND<<24 | HOST_TID<<12 | i2o_dev->lct_data.tid;
- msg[2] = priv->unit << 16 | lan_context; // InitiatorContext
- msg[3] = 0; // TransactionContext
- msg[4] = 1 << 16; // return posted buckets
-
- if (i2o_post_this(iop, msg, sizeof(msg)) < 0)
- return -ETIMEDOUT;
-
- return 0;
-}
-
-/*
- * i2o_set_ddm_parameters:
- * These settings are done to ensure proper initial values for DDM.
- * They can be changed via proc file system or vai configuration utility.
- */
-static void i2o_set_ddm_parameters(struct net_device *dev)
-{
- struct i2o_lan_local *priv = (struct i2o_lan_local *)dev->priv;
- struct i2o_device *i2o_dev = priv->i2o_dev;
- struct i2o_controller *iop = i2o_dev->controller;
- u32 val;
-
- /*
- * When PacketOrphanlimit is set to the maximum packet length,
- * the packets will never be split into two separate buckets
- */
- val = dev->mtu + dev->hard_header_len;
- if (i2o_set_scalar(iop, i2o_dev->lct_data.tid, 0x0004, 2, &val, sizeof(val)) < 0)
- printk(KERN_WARNING "%s: Unable to set PacketOrphanLimit.\n",
- dev->name);
- else
- dprintk(KERN_INFO "%s: PacketOrphanLimit set to %d.\n",
- dev->name, val);
-
- /* When RxMaxPacketsBucket = 1, DDM puts only one packet into bucket */
-
- val = 1;
- if (i2o_set_scalar(iop, i2o_dev->lct_data.tid, 0x0008, 4, &val, sizeof(val)) <0)
- printk(KERN_WARNING "%s: Unable to set RxMaxPacketsBucket.\n",
- dev->name);
- else
- dprintk(KERN_INFO "%s: RxMaxPacketsBucket set to %d.\n",
- dev->name, val);
- return;
-}
-
-/* Functions called from the network stack:
-==========================================*/
-
-/*
- * i2o_lan_open(): Open the device to send/receive packets via
- * the network device.
- */
-static int i2o_lan_open(struct net_device *dev)
-{
- struct i2o_lan_local *priv = (struct i2o_lan_local *)dev->priv;
- struct i2o_device *i2o_dev = priv->i2o_dev;
- struct i2o_controller *iop = i2o_dev->controller;
- u32 mc_addr_group[64];
-
- MOD_INC_USE_COUNT;
-
- if (i2o_claim_device(i2o_dev, &i2o_lan_handler)) {
- printk(KERN_WARNING "%s: Unable to claim the I2O LAN device.\n", dev->name);
- MOD_DEC_USE_COUNT;
- return -EAGAIN;
- }
- dprintk(KERN_INFO "%s: I2O LAN device (tid=%d) claimed by LAN OSM.\n",
- dev->name, i2o_dev->lct_data.tid);
-
- if (i2o_event_register(iop, i2o_dev->lct_data.tid,
- priv->unit << 16 | lan_context, 0, priv->i2o_event_mask) < 0)
- printk(KERN_WARNING "%s: Unable to set the event mask.\n", dev->name);
-
- i2o_lan_reset(dev);
-
- /* Get the max number of multicast addresses */
-
- if (i2o_query_scalar(iop, i2o_dev->lct_data.tid, 0x0001, -1,
- &mc_addr_group, sizeof(mc_addr_group)) < 0 ) {
- printk(KERN_WARNING "%s: Unable to query LAN_MAC_ADDRESS group.\n", dev->name);
- MOD_DEC_USE_COUNT;
- return -EAGAIN;
- }
- priv->max_size_mc_table = mc_addr_group[8];
-
- /* Malloc space for free bucket list to resuse reveive post buckets */
-
- priv->i2o_fbl = kmalloc(priv->max_buckets_out * sizeof(struct sk_buff *),
- GFP_KERNEL);
- if (priv->i2o_fbl == NULL) {
- MOD_DEC_USE_COUNT;
- return -ENOMEM;
- }
- priv->i2o_fbl_tail = -1;
- priv->send_active = 0;
-
- i2o_set_ddm_parameters(dev);
- i2o_lan_receive_post(dev);
-
- netif_start_queue(dev);
-
- return 0;
-}
-
-/*
- * i2o_lan_close(): End the transfering.
- */
-static int i2o_lan_close(struct net_device *dev)
-{
- struct i2o_lan_local *priv = (struct i2o_lan_local *)dev->priv;
- struct i2o_device *i2o_dev = priv->i2o_dev;
- struct i2o_controller *iop = i2o_dev->controller;
- int ret = 0;
-
- netif_stop_queue(dev);
- i2o_lan_suspend(dev);
-
- if (i2o_event_register(iop, i2o_dev->lct_data.tid,
- priv->unit << 16 | lan_context, 0, 0) < 0)
- printk(KERN_WARNING "%s: Unable to clear the event mask.\n",
- dev->name);
-
- while (priv->i2o_fbl_tail >= 0)
- dev_kfree_skb(priv->i2o_fbl[priv->i2o_fbl_tail--]);
-
- kfree(priv->i2o_fbl);
-
- if (i2o_release_device(i2o_dev, &i2o_lan_handler)) {
- printk(KERN_WARNING "%s: Unable to unclaim I2O LAN device "
- "(tid=%d).\n", dev->name, i2o_dev->lct_data.tid);
- ret = -EBUSY;
- }
-
- MOD_DEC_USE_COUNT;
-
- return ret;
-}
-
-/*
- * i2o_lan_tx_timeout(): Tx timeout handler.
- */
-static void i2o_lan_tx_timeout(struct net_device *dev)
-{
- if (!netif_queue_stopped(dev))
- netif_start_queue(dev);
-}
-
-/*
- * i2o_lan_batch_send(): Send packets in batch.
- * Both i2o_lan_sdu_send and i2o_lan_packet_send use this.
- */
-static void i2o_lan_batch_send(struct net_device *dev)
-{
- struct i2o_lan_local *priv = (struct i2o_lan_local *)dev->priv;
- struct i2o_controller *iop = priv->i2o_dev->controller;
-
- spin_lock_irq(&priv->tx_lock);
- if (priv->tx_count != 0) {
- dev->trans_start = jiffies;
- i2o_post_message(iop, priv->m);
- dprintk(KERN_DEBUG "%s: %d packets sent.\n", dev->name, priv->tx_count);
- priv->tx_count = 0;
- }
- priv->send_active = 0;
- spin_unlock_irq(&priv->tx_lock);
- MOD_DEC_USE_COUNT;
-}
-
-#ifdef CONFIG_NET_FC
-/*
- * i2o_lan_sdu_send(): Send a packet, MAC header added by the DDM.
- * Must be supported by Fibre Channel, optional for Ethernet/802.3,
- * Token Ring, FDDI
- */
-static int i2o_lan_sdu_send(struct sk_buff *skb, struct net_device *dev)
-{
- struct i2o_lan_local *priv = (struct i2o_lan_local *)dev->priv;
- struct i2o_device *i2o_dev = priv->i2o_dev;
- struct i2o_controller *iop = i2o_dev->controller;
- int tickssofar = jiffies - dev->trans_start;
- u32 m, *msg;
- u32 *sgl_elem;
-
- spin_lock_irq(&priv->tx_lock);
-
- priv->tx_count++;
- atomic_inc(&priv->tx_out);
-
- /*
- * If tx_batch_mode = 0x00 forced to immediate mode
- * If tx_batch_mode = 0x01 forced to batch mode
- * If tx_batch_mode = 0x10 switch automatically, current mode immediate
- * If tx_batch_mode = 0x11 switch automatically, current mode batch
- * If gap between two packets is > 0 ticks, switch to immediate
- */
- if (priv->tx_batch_mode >> 1) // switch automatically
- priv->tx_batch_mode = tickssofar ? 0x02 : 0x03;
-
- if (priv->tx_count == 1) {
- m = I2O_POST_READ32(iop);
- if (m == 0xFFFFFFFF) {
- spin_unlock_irq(&priv->tx_lock);
- return 1;
- }
- msg = (u32 *)(iop->mem_offset + m);
- priv->m = m;
-
- __raw_writel(NINE_WORD_MSG_SIZE | 1<<12 | SGL_OFFSET_4, msg);
- __raw_writel(LAN_PACKET_SEND<<24 | HOST_TID<<12 | i2o_dev->lct_data.tid, msg+1);
- __raw_writel(priv->unit << 16 | lan_send_context, msg+2); // InitiatorContext
- __raw_writel(1 << 30 | 1 << 3, msg+3); // TransmitControlWord
-
- __raw_writel(0xD7000000 | skb->len, msg+4); // MAC hdr included
- __raw_writel((u32)skb, msg+5); // TransactionContext
- __raw_writel(virt_to_bus(skb->data), msg+6);
- __raw_writel((u32)skb->mac.raw, msg+7);
- __raw_writel((u32)skb->mac.raw+4, msg+8);
-
- if ((priv->tx_batch_mode & 0x01) && !priv->send_active) {
- priv->send_active = 1;
- MOD_INC_USE_COUNT;
- if (schedule_work(&priv->i2o_batch_send_task) == 0)
- MOD_DEC_USE_COUNT;
- }
- } else { /* Add new SGL element to the previous message frame */
-
- msg = (u32 *)(iop->mem_offset + priv->m);
- sgl_elem = &msg[priv->tx_count * 5 + 1];
-
- __raw_writel(I2O_MESSAGE_SIZE((__raw_readl(msg)>>16) + 5) | 1<<12 | SGL_OFFSET_4, msg);
- __raw_writel(__raw_readl(sgl_elem-5) & 0x7FFFFFFF, sgl_elem-5); /* clear LE flag */
- __raw_writel(0xD5000000 | skb->len, sgl_elem);
- __raw_writel((u32)skb, sgl_elem+1);
- __raw_writel(virt_to_bus(skb->data), sgl_elem+2);
- __raw_writel((u32)(skb->mac.raw), sgl_elem+3);
- __raw_writel((u32)(skb->mac.raw)+1, sgl_elem+4);
- }
-
- /* If tx not in batch mode or frame is full, send immediatelly */
-
- if (!(priv->tx_batch_mode & 0x01) || priv->tx_count == priv->sgl_max) {
- dev->trans_start = jiffies;
- i2o_post_message(iop, priv->m);
- dprintk(KERN_DEBUG "%s: %d packets sent.\n", dev->name, priv->tx_count);
- priv->tx_count = 0;
- }
-
- /* If DDMs TxMaxPktOut reached, stop queueing layer to send more */
-
- if (atomic_read(&priv->tx_out) >= priv->tx_max_out)
- netif_stop_queue(dev);
-
- spin_unlock_irq(&priv->tx_lock);
- return 0;
-}
-#endif /* CONFIG_NET_FC */
-
-/*
- * i2o_lan_packet_send(): Send a packet as is, including the MAC header.
- *
- * Must be supported by Ethernet/802.3, Token Ring, FDDI, optional for
- * Fibre Channel
- */
-static int i2o_lan_packet_send(struct sk_buff *skb, struct net_device *dev)
-{
- struct i2o_lan_local *priv = (struct i2o_lan_local *)dev->priv;
- struct i2o_device *i2o_dev = priv->i2o_dev;
- struct i2o_controller *iop = i2o_dev->controller;
- int tickssofar = jiffies - dev->trans_start;
- u32 m, *msg;
- u32 *sgl_elem;
-
- spin_lock_irq(&priv->tx_lock);
-
- priv->tx_count++;
- atomic_inc(&priv->tx_out);
-
- /*
- * If tx_batch_mode = 0x00 forced to immediate mode
- * If tx_batch_mode = 0x01 forced to batch mode
- * If tx_batch_mode = 0x10 switch automatically, current mode immediate
- * If tx_batch_mode = 0x11 switch automatically, current mode batch
- * If gap between two packets is > 0 ticks, switch to immediate
- */
- if (priv->tx_batch_mode >> 1) // switch automatically
- priv->tx_batch_mode = tickssofar ? 0x02 : 0x03;
-
- if (priv->tx_count == 1) {
- m = I2O_POST_READ32(iop);
- if (m == 0xFFFFFFFF) {
- spin_unlock_irq(&priv->tx_lock);
- return 1;
- }
- msg = (u32 *)(iop->mem_offset + m);
- priv->m = m;
-
- __raw_writel(SEVEN_WORD_MSG_SIZE | 1<<12 | SGL_OFFSET_4, msg);
- __raw_writel(LAN_PACKET_SEND<<24 | HOST_TID<<12 | i2o_dev->lct_data.tid, msg+1);
- __raw_writel(priv->unit << 16 | lan_send_context, msg+2); // InitiatorContext
- __raw_writel(1 << 30 | 1 << 3, msg+3); // TransmitControlWord
- // bit 30: reply as soon as transmission attempt is complete
- // bit 3: Suppress CRC generation
- __raw_writel(0xD5000000 | skb->len, msg+4); // MAC hdr included
- __raw_writel((u32)skb, msg+5); // TransactionContext
- __raw_writel(virt_to_bus(skb->data), msg+6);
-
- if ((priv->tx_batch_mode & 0x01) && !priv->send_active) {
- priv->send_active = 1;
- MOD_INC_USE_COUNT;
- if (schedule_work(&priv->i2o_batch_send_task) == 0)
- MOD_DEC_USE_COUNT;
- }
- } else { /* Add new SGL element to the previous message frame */
-
- msg = (u32 *)(iop->mem_offset + priv->m);
- sgl_elem = &msg[priv->tx_count * 3 + 1];
-
- __raw_writel(I2O_MESSAGE_SIZE((__raw_readl(msg)>>16) + 3) | 1<<12 | SGL_OFFSET_4, msg);
- __raw_writel(__raw_readl(sgl_elem-3) & 0x7FFFFFFF, sgl_elem-3); /* clear LE flag */
- __raw_writel(0xD5000000 | skb->len, sgl_elem);
- __raw_writel((u32)skb, sgl_elem+1);
- __raw_writel(virt_to_bus(skb->data), sgl_elem+2);
- }
-
- /* If tx is in immediate mode or frame is full, send now */
-
- if (!(priv->tx_batch_mode & 0x01) || priv->tx_count == priv->sgl_max) {
- dev->trans_start = jiffies;
- i2o_post_message(iop, priv->m);
- dprintk(KERN_DEBUG "%s: %d packets sent.\n", dev->name, priv->tx_count);
- priv->tx_count = 0;
- }
-
- /* If DDMs TxMaxPktOut reached, stop queueing layer to send more */
-
- if (atomic_read(&priv->tx_out) >= priv->tx_max_out)
- netif_stop_queue(dev);
-
- spin_unlock_irq(&priv->tx_lock);
- return 0;
-}
-
-/*
- * i2o_lan_get_stats(): Fill in the statistics.
- */
-static struct net_device_stats *i2o_lan_get_stats(struct net_device *dev)
-{
- struct i2o_lan_local *priv = (struct i2o_lan_local *)dev->priv;
- struct i2o_device *i2o_dev = priv->i2o_dev;
- struct i2o_controller *iop = i2o_dev->controller;
- u64 val64[16];
- u64 supported_group[4] = { 0, 0, 0, 0 };
-
- if (i2o_query_scalar(iop, i2o_dev->lct_data.tid, 0x0100, -1, val64,
- sizeof(val64)) < 0)
- printk(KERN_INFO "%s: Unable to query LAN_HISTORICAL_STATS.\n", dev->name);
- else {
- dprintk(KERN_DEBUG "%s: LAN_HISTORICAL_STATS queried.\n", dev->name);
- priv->stats.tx_packets = val64[0];
- priv->stats.tx_bytes = val64[1];
- priv->stats.rx_packets = val64[2];
- priv->stats.rx_bytes = val64[3];
- priv->stats.tx_errors = val64[4];
- priv->stats.rx_errors = val64[5];
- priv->stats.rx_dropped = val64[6];
- }
-
- if (i2o_query_scalar(iop, i2o_dev->lct_data.tid, 0x0180, -1,
- &supported_group, sizeof(supported_group)) < 0)
- printk(KERN_INFO "%s: Unable to query LAN_SUPPORTED_OPTIONAL_HISTORICAL_STATS.\n", dev->name);
-
- if (supported_group[2]) {
- if (i2o_query_scalar(iop, i2o_dev->lct_data.tid, 0x0183, -1,
- val64, sizeof(val64)) < 0)
- printk(KERN_INFO "%s: Unable to query LAN_OPTIONAL_RX_HISTORICAL_STATS.\n", dev->name);
- else {
- dprintk(KERN_DEBUG "%s: LAN_OPTIONAL_RX_HISTORICAL_STATS queried.\n", dev->name);
- priv->stats.multicast = val64[4];
- priv->stats.rx_length_errors = val64[10];
- priv->stats.rx_crc_errors = val64[0];
- }
- }
-
- if (i2o_dev->lct_data.sub_class == I2O_LAN_ETHERNET) {
- u64 supported_stats = 0;
- if (i2o_query_scalar(iop, i2o_dev->lct_data.tid, 0x0200, -1,
- val64, sizeof(val64)) < 0)
- printk(KERN_INFO "%s: Unable to query LAN_802_3_HISTORICAL_STATS.\n", dev->name);
- else {
- dprintk(KERN_DEBUG "%s: LAN_802_3_HISTORICAL_STATS queried.\n", dev->name);
- priv->stats.transmit_collision = val64[1] + val64[2];
- priv->stats.rx_frame_errors = val64[0];
- priv->stats.tx_carrier_errors = val64[6];
- }
-
- if (i2o_query_scalar(iop, i2o_dev->lct_data.tid, 0x0280, -1,
- &supported_stats, sizeof(supported_stats)) < 0)
- printk(KERN_INFO "%s: Unable to query LAN_SUPPORTED_802_3_HISTORICAL_STATS.\n", dev->name);
-
- if (supported_stats != 0) {
- if (i2o_query_scalar(iop, i2o_dev->lct_data.tid, 0x0281, -1,
- val64, sizeof(val64)) < 0)
- printk(KERN_INFO "%s: Unable to query LAN_OPTIONAL_802_3_HISTORICAL_STATS.\n", dev->name);
- else {
- dprintk(KERN_DEBUG "%s: LAN_OPTIONAL_802_3_HISTORICAL_STATS queried.\n", dev->name);
- if (supported_stats & 0x1)
- priv->stats.rx_over_errors = val64[0];
- if (supported_stats & 0x4)
- priv->stats.tx_heartbeat_errors = val64[2];
- }
- }
- }
-
-#ifdef CONFIG_TR
- if (i2o_dev->lct_data.sub_class == I2O_LAN_TR) {
- if (i2o_query_scalar(iop, i2o_dev->lct_data.tid, 0x0300, -1,
- val64, sizeof(val64)) < 0)
- printk(KERN_INFO "%s: Unable to query LAN_802_5_HISTORICAL_STATS.\n", dev->name);
- else {
- struct tr_statistics *stats =
- (struct tr_statistics *)&priv->stats;
- dprintk(KERN_DEBUG "%s: LAN_802_5_HISTORICAL_STATS queried.\n", dev->name);
-
- stats->line_errors = val64[0];
- stats->internal_errors = val64[7];
- stats->burst_errors = val64[4];
- stats->A_C_errors = val64[2];
- stats->abort_delimiters = val64[3];
- stats->lost_frames = val64[1];
- /* stats->recv_congest_count = ?; FIXME ??*/
- stats->frame_copied_errors = val64[5];
- stats->frequency_errors = val64[6];
- stats->token_errors = val64[9];
- }
- /* Token Ring optional stats not yet defined */
- }
-#endif
-
-#ifdef CONFIG_FDDI
- if (i2o_dev->lct_data.sub_class == I2O_LAN_FDDI) {
- if (i2o_query_scalar(iop, i2o_dev->lct_data.tid, 0x0400, -1,
- val64, sizeof(val64)) < 0)
- printk(KERN_INFO "%s: Unable to query LAN_FDDI_HISTORICAL_STATS.\n", dev->name);
- else {
- dprintk(KERN_DEBUG "%s: LAN_FDDI_HISTORICAL_STATS queried.\n", dev->name);
- priv->stats.smt_cf_state = val64[0];
- memcpy(priv->stats.mac_upstream_nbr, &val64[1], FDDI_K_ALEN);
- memcpy(priv->stats.mac_downstream_nbr, &val64[2], FDDI_K_ALEN);
- priv->stats.mac_error_cts = val64[3];
- priv->stats.mac_lost_cts = val64[4];
- priv->stats.mac_rmt_state = val64[5];
- memcpy(priv->stats.port_lct_fail_cts, &val64[6], 8);
- memcpy(priv->stats.port_lem_reject_cts, &val64[7], 8);
- memcpy(priv->stats.port_lem_cts, &val64[8], 8);
- memcpy(priv->stats.port_pcm_state, &val64[9], 8);
- }
- /* FDDI optional stats not yet defined */
- }
-#endif
-
-#ifdef CONFIG_NET_FC
- /* Fibre Channel Statistics not yet defined in 1.53 nor 2.0 */
-#endif
-
- return (struct net_device_stats *)&priv->stats;
-}
-
-/*
- * i2o_lan_set_mc_filter(): Post a request to set multicast filter.
- */
-int i2o_lan_set_mc_filter(struct net_device *dev, u32 filter_mask)
-{
- struct i2o_lan_local *priv = (struct i2o_lan_local *)dev->priv;
- struct i2o_device *i2o_dev = priv->i2o_dev;
- struct i2o_controller *iop = i2o_dev->controller;
- u32 msg[10];
-
- msg[0] = TEN_WORD_MSG_SIZE | SGL_OFFSET_5;
- msg[1] = I2O_CMD_UTIL_PARAMS_SET << 24 | HOST_TID << 12 | i2o_dev->lct_data.tid;
- msg[2] = priv->unit << 16 | lan_context;
- msg[3] = 0x0001 << 16 | 3 ; // TransactionContext: group&field
- msg[4] = 0;
- msg[5] = 0xCC000000 | 16; // Immediate data SGL
- msg[6] = 1; // OperationCount
- msg[7] = 0x0001<<16 | I2O_PARAMS_FIELD_SET; // Group, Operation
- msg[8] = 3 << 16 | 1; // FieldIndex, FieldCount
- msg[9] = filter_mask; // Value
-
- return i2o_post_this(iop, msg, sizeof(msg));
-}
-
-/*
- * i2o_lan_set_mc_table(): Post a request to set LAN_MULTICAST_MAC_ADDRESS table.
- */
-int i2o_lan_set_mc_table(struct net_device *dev)
-{
- struct i2o_lan_local *priv = (struct i2o_lan_local *)dev->priv;
- struct i2o_device *i2o_dev = priv->i2o_dev;
- struct i2o_controller *iop = i2o_dev->controller;
- struct dev_mc_list *mc;
- u32 msg[10 + 2 * dev->mc_count];
- u8 *work8 = (u8 *)(msg + 10);
-
- msg[0] = I2O_MESSAGE_SIZE(10 + 2 * dev->mc_count) | SGL_OFFSET_5;
- msg[1] = I2O_CMD_UTIL_PARAMS_SET << 24 | HOST_TID << 12 | i2o_dev->lct_data.tid;
- msg[2] = priv->unit << 16 | lan_context; // InitiatorContext
- msg[3] = 0x0002 << 16 | (u16)-1; // TransactionContext
- msg[4] = 0; // OperationFlags
- msg[5] = 0xCC000000 | (16 + 8 * dev->mc_count); // Immediate data SGL
- msg[6] = 2; // OperationCount
- msg[7] = 0x0002 << 16 | I2O_PARAMS_TABLE_CLEAR; // Group, Operation
- msg[8] = 0x0002 << 16 | I2O_PARAMS_ROW_ADD; // Group, Operation
- msg[9] = dev->mc_count << 16 | (u16)-1; // RowCount, FieldCount
-
- for (mc = dev->mc_list; mc ; mc = mc->next, work8 += 8) {
- memset(work8, 0, 8);
- memcpy(work8, mc->dmi_addr, mc->dmi_addrlen); // Values
- }
-
- return i2o_post_this(iop, msg, sizeof(msg));
-}
-
-/*
- * i2o_lan_set_multicast_list(): Enable a network device to receive packets
- * not send to the protocol address.
- */
-static void i2o_lan_set_multicast_list(struct net_device *dev)
-{
- struct i2o_lan_local *priv = (struct i2o_lan_local *)dev->priv;
- u32 filter_mask;
-
- if (dev->flags & IFF_PROMISC) {
- filter_mask = 0x00000002;
- dprintk(KERN_INFO "%s: Enabling promiscuous mode...\n", dev->name);
- } else if ((dev->flags & IFF_ALLMULTI) || dev->mc_count > priv->max_size_mc_table) {
- filter_mask = 0x00000004;
- dprintk(KERN_INFO "%s: Enabling all multicast mode...\n", dev->name);
- } else if (dev->mc_count) {
- filter_mask = 0x00000000;
- dprintk(KERN_INFO "%s: Enabling multicast mode...\n", dev->name);
- if (i2o_lan_set_mc_table(dev) < 0)
- printk(KERN_WARNING "%s: Unable to send MAC table.\n", dev->name);
- } else {
- filter_mask = 0x00000300; // Broadcast, Multicast disabled
- dprintk(KERN_INFO "%s: Enabling unicast mode...\n", dev->name);
- }
-
- /* Finally copy new FilterMask to DDM */
-
- if (i2o_lan_set_mc_filter(dev, filter_mask) < 0)
- printk(KERN_WARNING "%s: Unable to send MAC FilterMask.\n", dev->name);
-}
-
-/*
- * i2o_lan_change_mtu(): Change maximum transfer unit size.
- */
-static int i2o_lan_change_mtu(struct net_device *dev, int new_mtu)
-{
- struct i2o_lan_local *priv = (struct i2o_lan_local *)dev->priv;
- struct i2o_device *i2o_dev = priv->i2o_dev;
- u32 max_pkt_size;
-
- if (i2o_query_scalar(i2o_dev->controller, i2o_dev->lct_data.tid,
- 0x0000, 6, &max_pkt_size, 4) < 0)
- return -EFAULT;
-
- if (new_mtu < 68 || new_mtu > 9000 || new_mtu > max_pkt_size)
- return -EINVAL;
-
- dev->mtu = new_mtu;
-
- i2o_lan_suspend(dev); // to SUSPENDED state, return buckets
-
- while (priv->i2o_fbl_tail >= 0) // free buffered buckets
- dev_kfree_skb(priv->i2o_fbl[priv->i2o_fbl_tail--]);
-
- i2o_lan_reset(dev); // to OPERATIONAL state
- i2o_set_ddm_parameters(dev); // reset some parameters
- i2o_lan_receive_post(dev); // post new buckets (new size)
-
- return 0;
-}
-
-/* Functions to initialize I2O LAN OSM:
-======================================*/
-
-/*
- * i2o_lan_register_device(): Register LAN class device to kernel.
- */
-struct net_device *i2o_lan_register_device(struct i2o_device *i2o_dev)
-{
- struct net_device *dev = NULL;
- struct i2o_lan_local *priv = NULL;
- u8 hw_addr[8];
- u32 tx_max_out = 0;
- unsigned short (*type_trans)(struct sk_buff *, struct net_device *);
- void (*unregister_dev)(struct net_device *dev);
-
- switch (i2o_dev->lct_data.sub_class) {
- case I2O_LAN_ETHERNET:
- dev = init_etherdev(NULL, sizeof(struct i2o_lan_local));
- if (dev == NULL)
- return NULL;
- type_trans = eth_type_trans;
- unregister_dev = unregister_netdev;
- break;
-
-#ifdef CONFIG_ANYLAN
- case I2O_LAN_100VG:
- printk(KERN_ERR "i2o_lan: 100base VG not yet supported.\n");
- return NULL;
- break;
-#endif
-
-#ifdef CONFIG_TR
- case I2O_LAN_TR:
- dev = init_trdev(NULL, sizeof(struct i2o_lan_local));
- if (dev==NULL)
- return NULL;
- type_trans = tr_type_trans;
- unregister_dev = unregister_trdev;
- break;
-#endif
-
-#ifdef CONFIG_FDDI
- case I2O_LAN_FDDI:
- {
- int size = sizeof(struct net_device) + sizeof(struct i2o_lan_local);
-
- dev = (struct net_device *) kmalloc(size, GFP_KERNEL);
- if (dev == NULL)
- return NULL;
- memset((char *)dev, 0, size);
- dev->priv = (void *)(dev + 1);
-
- if (dev_alloc_name(dev, "fddi%d") < 0) {
- printk(KERN_WARNING "i2o_lan: Too many FDDI devices.\n");
- kfree(dev);
- return NULL;
- }
- type_trans = fddi_type_trans;
- unregister_dev = (void *)unregister_netdevice;
-
- fddi_setup(dev);
- register_netdev(dev);
- }
- break;
-#endif
-
-#ifdef CONFIG_NET_FC
- case I2O_LAN_FIBRE_CHANNEL:
- dev = init_fcdev(NULL, sizeof(struct i2o_lan_local));
- if (dev == NULL)
- return NULL;
- type_trans = NULL;
-/* FIXME: Move fc_type_trans() from drivers/net/fc/iph5526.c to net/802/fc.c
- * and export it in include/linux/fcdevice.h
- * type_trans = fc_type_trans;
- */
- unregister_dev = (void *)unregister_fcdev;
- break;
-#endif
-
- case I2O_LAN_UNKNOWN:
- default:
- printk(KERN_ERR "i2o_lan: LAN type 0x%04x not supported.\n",
- i2o_dev->lct_data.sub_class);
- return NULL;
- }
-
- priv = (struct i2o_lan_local *)dev->priv;
- priv->i2o_dev = i2o_dev;
- priv->type_trans = type_trans;
- priv->sgl_max = (i2o_dev->controller->status_block->inbound_frame_size - 4) / 3;
- atomic_set(&priv->buckets_out, 0);
-
- /* Set default values for user configurable parameters */
- /* Private values are changed via /proc file system */
-
- priv->max_buckets_out = max_buckets_out;
- priv->bucket_thresh = bucket_thresh;
- priv->rx_copybreak = rx_copybreak;
- priv->tx_batch_mode = tx_batch_mode & 0x03;
- priv->i2o_event_mask = i2o_event_mask;
-
- priv->tx_lock = SPIN_LOCK_UNLOCKED;
- priv->fbl_lock = SPIN_LOCK_UNLOCKED;
-
- unit++;
- i2o_landevs[unit] = dev;
- priv->unit = unit;
-
- if (i2o_query_scalar(i2o_dev->controller, i2o_dev->lct_data.tid,
- 0x0001, 0, &hw_addr, sizeof(hw_addr)) < 0) {
- printk(KERN_ERR "%s: Unable to query hardware address.\n", dev->name);
- unit--;
- unregister_dev(dev);
- kfree(dev);
- return NULL;
- }
- dprintk(KERN_DEBUG "%s: hwaddr = %02X:%02X:%02X:%02X:%02X:%02X\n",
- dev->name, hw_addr[0], hw_addr[1], hw_addr[2], hw_addr[3],
- hw_addr[4], hw_addr[5]);
-
- dev->addr_len = 6;
- memcpy(dev->dev_addr, hw_addr, 6);
-
- if (i2o_query_scalar(i2o_dev->controller, i2o_dev->lct_data.tid,
- 0x0007, 2, &tx_max_out, sizeof(tx_max_out)) < 0) {
- printk(KERN_ERR "%s: Unable to query max TX queue.\n", dev->name);
- unit--;
- unregister_dev(dev);
- kfree(dev);
- return NULL;
- }
- dprintk(KERN_INFO "%s: Max TX Outstanding = %d.\n", dev->name, tx_max_out);
- priv->tx_max_out = tx_max_out;
- atomic_set(&priv->tx_out, 0);
- priv->tx_count = 0;
-
- INIT_LIST_HEAD(&priv->i2o_batch_send_task.list);
- priv->i2o_batch_send_task.sync = 0;
- INIT_WORK(&priv->i2o_batch_send_task, (void *)i2o_lan_batch_send,
- (void *)dev);
-
- dev->open = i2o_lan_open;
- dev->stop = i2o_lan_close;
- dev->get_stats = i2o_lan_get_stats;
- dev->set_multicast_list = i2o_lan_set_multicast_list;
- dev->tx_timeout = i2o_lan_tx_timeout;
- dev->watchdog_timeo = I2O_LAN_TX_TIMEOUT;
-
-#ifdef CONFIG_NET_FC
- if (i2o_dev->lct_data.sub_class == I2O_LAN_FIBRE_CHANNEL)
- dev->hard_start_xmit = i2o_lan_sdu_send;
- else
-#endif
- dev->hard_start_xmit = i2o_lan_packet_send;
-
- if (i2o_dev->lct_data.sub_class == I2O_LAN_ETHERNET)
- dev->change_mtu = i2o_lan_change_mtu;
-
- return dev;
-}
-
-#ifdef MODULE
-#define i2o_lan_init init_module
-#endif
-
-int __init i2o_lan_init(void)
-{
- struct net_device *dev;
- int i;
-
- printk(KERN_INFO "I2O LAN OSM (C) 1999 University of Helsinki.\n");
-
- /* Module params are used as global defaults for private values */
-
- if (max_buckets_out > I2O_LAN_MAX_BUCKETS_OUT)
- max_buckets_out = I2O_LAN_MAX_BUCKETS_OUT;
- if (bucket_thresh > max_buckets_out)
- bucket_thresh = max_buckets_out;
-
- /* Install handlers for incoming replies */
-
- if (i2o_install_handler(&i2o_lan_send_handler) < 0) {
- printk(KERN_ERR "i2o_lan: Unable to register I2O LAN OSM.\n");
- return -EINVAL;
- }
- lan_send_context = i2o_lan_send_handler.context;
-
- if (i2o_install_handler(&i2o_lan_receive_handler) < 0) {
- printk(KERN_ERR "i2o_lan: Unable to register I2O LAN OSM.\n");
- return -EINVAL;
- }
- lan_receive_context = i2o_lan_receive_handler.context;
-
- if (i2o_install_handler(&i2o_lan_handler) < 0) {
- printk(KERN_ERR "i2o_lan: Unable to register I2O LAN OSM.\n");
- return -EINVAL;
- }
- lan_context = i2o_lan_handler.context;
-
- for(i=0; i <= MAX_LAN_CARDS; i++)
- i2o_landevs[i] = NULL;
-
- for (i=0; i < MAX_I2O_CONTROLLERS; i++) {
- struct i2o_controller *iop = i2o_find_controller(i);
- struct i2o_device *i2o_dev;
-
- if (iop==NULL)
- continue;
-
- for (i2o_dev=iop->devices;i2o_dev != NULL;i2o_dev=i2o_dev->next) {
-
- if (i2o_dev->lct_data.class_id != I2O_CLASS_LAN)
- continue;
-
- /* Make sure device not already claimed by an ISM */
- if (i2o_dev->lct_data.user_tid != 0xFFF)
- continue;
-
- if (unit == MAX_LAN_CARDS) {
- i2o_unlock_controller(iop);
- printk(KERN_WARNING "i2o_lan: Too many I2O LAN devices.\n");
- return -EINVAL;
- }
-
- dev = i2o_lan_register_device(i2o_dev);
- if (dev == NULL) {
- printk(KERN_ERR "i2o_lan: Unable to register I2O LAN device 0x%04x.\n",
- i2o_dev->lct_data.sub_class);
- continue;
- }
-
- printk(KERN_INFO "%s: I2O LAN device registered, "
- "subclass = 0x%04x, unit = %d, tid = %d.\n",
- dev->name, i2o_dev->lct_data.sub_class,
- ((struct i2o_lan_local *)dev->priv)->unit,
- i2o_dev->lct_data.tid);
- }
-
- i2o_unlock_controller(iop);
- }
-
- dprintk(KERN_INFO "%d I2O LAN devices found and registered.\n", unit+1);
-
- return 0;
-}
-
-#ifdef MODULE
-
-void cleanup_module(void)
-{
- int i;
-
- for (i = 0; i <= unit; i++) {
- struct net_device *dev = i2o_landevs[i];
- struct i2o_lan_local *priv = (struct i2o_lan_local *)dev->priv;
- struct i2o_device *i2o_dev = priv->i2o_dev;
-
- switch (i2o_dev->lct_data.sub_class) {
- case I2O_LAN_ETHERNET:
- unregister_netdev(dev);
- break;
-#ifdef CONFIG_FDDI
- case I2O_LAN_FDDI:
- unregister_netdevice(dev);
- break;
-#endif
-#ifdef CONFIG_TR
- case I2O_LAN_TR:
- unregister_trdev(dev);
- break;
-#endif
-#ifdef CONFIG_NET_FC
- case I2O_LAN_FIBRE_CHANNEL:
- unregister_fcdev(dev);
- break;
-#endif
- default:
- printk(KERN_WARNING "%s: Spurious I2O LAN subclass 0x%08x.\n",
- dev->name, i2o_dev->lct_data.sub_class);
- }
-
- dprintk(KERN_INFO "%s: I2O LAN device unregistered.\n",
- dev->name);
- kfree(dev);
- }
-
- i2o_remove_handler(&i2o_lan_handler);
- i2o_remove_handler(&i2o_lan_send_handler);
- i2o_remove_handler(&i2o_lan_receive_handler);
-}
-
-MODULE_AUTHOR("University of Helsinki, Department of Computer Science");
-MODULE_DESCRIPTION("I2O Lan OSM");
-MODULE_LICENSE("GPL");
-
-
-MODULE_PARM(max_buckets_out, "1-" __MODULE_STRING(I2O_LAN_MAX_BUCKETS_OUT) "i");
-MODULE_PARM_DESC(max_buckets_out, "Total number of buckets to post (1-)");
-MODULE_PARM(bucket_thresh, "1-" __MODULE_STRING(I2O_LAN_MAX_BUCKETS_OUT) "i");
-MODULE_PARM_DESC(bucket_thresh, "Bucket post threshold (1-)");
-MODULE_PARM(rx_copybreak, "1-" "i");
-MODULE_PARM_DESC(rx_copybreak, "Copy breakpoint for copy only small frames (1-)");
-MODULE_PARM(tx_batch_mode, "0-2" "i");
-MODULE_PARM_DESC(tx_batch_mode, "0=Send immediatelly, 1=Send in batches, 2=Switch automatically");
-
-#endif
-
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