To compile this driver as a module, say M here: The module will be
called firewire-ohci.
-config FIREWIRE_OHCI_DEBUG
- bool
- depends on FIREWIRE_OHCI
- default y
-
config FIREWIRE_SBP2
tristate "Storage devices (SBP-2 protocol)"
depends on FIREWIRE && SCSI
#include "core.h"
+#define define_fw_printk_level(func, kern_level) \
+void func(const struct fw_card *card, const char *fmt, ...) \
+{ \
+ struct va_format vaf; \
+ va_list args; \
+ \
+ va_start(args, fmt); \
+ vaf.fmt = fmt; \
+ vaf.va = &args; \
+ printk(kern_level KBUILD_MODNAME " %s: %pV", \
+ dev_name(card->device), &vaf); \
+ va_end(args); \
+}
+define_fw_printk_level(fw_err, KERN_ERR);
+define_fw_printk_level(fw_notice, KERN_NOTICE);
+
int fw_compute_block_crc(__be32 *block)
{
int length;
fw_iso_resource_manage(card, generation, 1ULL << 31,
&channel, &bandwidth, true);
if (channel != 31) {
- fw_notify("failed to allocate broadcast channel\n");
+ fw_notice(card, "failed to allocate broadcast channel\n");
return;
}
card->broadcast_channel_allocated = true;
if (!card->irm_node->link_on) {
new_root_id = local_id;
- fw_notify("%s, making local node (%02x) root.\n",
+ fw_notice(card, "%s, making local node (%02x) root\n",
"IRM has link off", new_root_id);
goto pick_me;
}
if (irm_is_1394_1995_only && !keep_this_irm) {
new_root_id = local_id;
- fw_notify("%s, making local node (%02x) root.\n",
+ fw_notice(card, "%s, making local node (%02x) root\n",
"IRM is not 1394a compliant", new_root_id);
goto pick_me;
}
* root, and thus, IRM.
*/
new_root_id = local_id;
- fw_notify("%s, making local node (%02x) root.\n",
+ fw_notice(card, "%s, making local node (%02x) root\n",
"BM lock failed", new_root_id);
goto pick_me;
}
spin_unlock_irq(&card->lock);
if (do_reset) {
- fw_notify("phy config: card %d, new root=%x, gap_count=%d\n",
- card->index, new_root_id, gap_count);
+ fw_notice(card, "phy config: new root=%x, gap_count=%d\n",
+ new_root_id, gap_count);
fw_send_phy_config(card, new_root_id, generation, gap_count);
reset_bus(card, true);
/* Will allocate broadcast channel after the reset. */
{
}
+static int dummy_flush_iso_completions(struct fw_iso_context *ctx)
+{
+ return -ENODEV;
+}
+
static const struct fw_card_driver dummy_driver_template = {
.read_phy_reg = dummy_read_phy_reg,
.update_phy_reg = dummy_update_phy_reg,
.set_iso_channels = dummy_set_iso_channels,
.queue_iso = dummy_queue_iso,
.flush_queue_iso = dummy_flush_queue_iso,
+ .flush_iso_completions = dummy_flush_iso_completions,
};
void fw_card_release(struct kref *kref)
/*
* ABI version history is documented in linux/firewire-cdev.h.
*/
-#define FW_CDEV_KERNEL_VERSION 4
+#define FW_CDEV_KERNEL_VERSION 5
#define FW_CDEV_VERSION_EVENT_REQUEST2 4
#define FW_CDEV_VERSION_ALLOCATE_REGION_END 4
e = kzalloc(sizeof(*e), GFP_KERNEL);
if (e == NULL) {
- fw_notify("Out of memory when allocating event\n");
+ fw_notice(client->device->card, "out of memory when allocating event\n");
return;
}
struct fw_cdev_send_phy_packet send_phy_packet;
struct fw_cdev_receive_phy_packets receive_phy_packets;
struct fw_cdev_set_iso_channels set_iso_channels;
+ struct fw_cdev_flush_iso flush_iso;
};
static int ioctl_get_info(struct client *client, union ioctl_arg *arg)
r = kmalloc(sizeof(*r), GFP_ATOMIC);
e = kmalloc(sizeof(*e), GFP_ATOMIC);
if (r == NULL || e == NULL) {
- fw_notify("Out of memory when allocating event\n");
+ fw_notice(card, "out of memory when allocating event\n");
goto failed;
}
r->card = card;
e = kmalloc(sizeof(*e) + header_length, GFP_ATOMIC);
if (e == NULL) {
- fw_notify("Out of memory when allocating event\n");
+ fw_notice(context->card, "out of memory when allocating event\n");
return;
}
e->interrupt.type = FW_CDEV_EVENT_ISO_INTERRUPT;
e = kmalloc(sizeof(*e), GFP_ATOMIC);
if (e == NULL) {
- fw_notify("Out of memory when allocating event\n");
+ fw_notice(context->card, "out of memory when allocating event\n");
return;
}
e->interrupt.type = FW_CDEV_EVENT_ISO_INTERRUPT_MULTICHANNEL;
return fw_iso_context_stop(client->iso_context);
}
+static int ioctl_flush_iso(struct client *client, union ioctl_arg *arg)
+{
+ struct fw_cdev_flush_iso *a = &arg->flush_iso;
+
+ if (client->iso_context == NULL || a->handle != 0)
+ return -EINVAL;
+
+ return fw_iso_context_flush_completions(client->iso_context);
+}
+
static int ioctl_get_cycle_timer2(struct client *client, union ioctl_arg *arg)
{
struct fw_cdev_get_cycle_timer2 *a = &arg->get_cycle_timer2;
list_for_each_entry(client, &card->phy_receiver_list, phy_receiver_link) {
e = kmalloc(sizeof(*e) + 8, GFP_ATOMIC);
if (e == NULL) {
- fw_notify("Out of memory when allocating event\n");
+ fw_notice(card, "out of memory when allocating event\n");
break;
}
e->phy_packet.closure = client->phy_receiver_closure;
[0x15] = ioctl_send_phy_packet,
[0x16] = ioctl_receive_phy_packets,
[0x17] = ioctl_set_iso_channels,
+ [0x18] = ioctl_flush_iso,
};
static int dispatch_ioctl(struct client *client,
*/
static int read_config_rom(struct fw_device *device, int generation)
{
+ struct fw_card *card = device->card;
const u32 *old_rom, *new_rom;
u32 *rom, *stack;
u32 sp, key;
*/
if ((rom[2] & 0x7) < device->max_speed ||
device->max_speed == SCODE_BETA ||
- device->card->beta_repeaters_present) {
+ card->beta_repeaters_present) {
u32 dummy;
/* for S1600 and S3200 */
if (device->max_speed == SCODE_BETA)
- device->max_speed = device->card->link_speed;
+ device->max_speed = card->link_speed;
while (device->max_speed > SCODE_100) {
if (read_rom(device, generation, 0, &dummy) ==
* a firmware bug. Ignore this whole block, i.e.
* simply set a fake block length of 0.
*/
- fw_error("skipped invalid ROM block %x at %llx\n",
- rom[i],
- i * 4 | CSR_REGISTER_BASE | CSR_CONFIG_ROM);
+ fw_err(card, "skipped invalid ROM block %x at %llx\n",
+ rom[i],
+ i * 4 | CSR_REGISTER_BASE | CSR_CONFIG_ROM);
rom[i] = 0;
end = i;
}
* the ROM don't have to check offsets all the time.
*/
if (i + (rom[i] & 0xffffff) >= MAX_CONFIG_ROM_SIZE) {
- fw_error("skipped unsupported ROM entry %x at %llx\n",
- rom[i],
- i * 4 | CSR_REGISTER_BASE | CSR_CONFIG_ROM);
+ fw_err(card,
+ "skipped unsupported ROM entry %x at %llx\n",
+ rom[i],
+ i * 4 | CSR_REGISTER_BASE | CSR_CONFIG_ROM);
rom[i] = 0;
continue;
}
{
struct fw_unit *unit = fw_unit(dev);
+ fw_device_put(fw_parent_device(unit));
kfree(unit);
}
*/
unit = kzalloc(sizeof(*unit), GFP_KERNEL);
if (unit == NULL) {
- fw_error("failed to allocate memory for unit\n");
+ fw_err(device->card, "out of memory for unit\n");
continue;
}
if (device_register(&unit->device) < 0)
goto skip_unit;
+ fw_device_get(device);
continue;
skip_unit:
smp_wmb(); /* update node_id before generation */
old->generation = card->generation;
old->config_rom_retries = 0;
- fw_notify("rediscovered device %s\n", dev_name(dev));
+ fw_notice(card, "rediscovered device %s\n", dev_name(dev));
PREPARE_DELAYED_WORK(&old->work, fw_device_update);
fw_schedule_device_work(old, 0);
{
struct fw_device *device =
container_of(work, struct fw_device, work.work);
+ struct fw_card *card = device->card;
struct device *revived_dev;
int minor, ret;
fw_schedule_device_work(device, RETRY_DELAY);
} else {
if (device->node->link_on)
- fw_notify("giving up on config rom for node id %x\n",
+ fw_notice(card, "giving up on Config ROM for node id %x\n",
device->node_id);
- if (device->node == device->card->root_node)
- fw_schedule_bm_work(device->card, 0);
+ if (device->node == card->root_node)
+ fw_schedule_bm_work(card, 0);
fw_device_release(&device->device);
}
return;
}
- revived_dev = device_find_child(device->card->device,
+ revived_dev = device_find_child(card->device,
device, lookup_existing_device);
if (revived_dev) {
put_device(revived_dev);
device->device.bus = &fw_bus_type;
device->device.type = &fw_device_type;
- device->device.parent = device->card->device;
+ device->device.parent = card->device;
device->device.devt = MKDEV(fw_cdev_major, minor);
dev_set_name(&device->device, "fw%d", minor);
&device->attribute_group);
if (device_add(&device->device)) {
- fw_error("Failed to add device.\n");
+ fw_err(card, "failed to add device\n");
goto error_with_cdev;
}
PREPARE_DELAYED_WORK(&device->work, fw_device_shutdown);
fw_schedule_device_work(device, SHUTDOWN_DELAY);
} else {
- if (device->config_rom_retries)
- fw_notify("created device %s: GUID %08x%08x, S%d00, "
- "%d config ROM retries\n",
- dev_name(&device->device),
- device->config_rom[3], device->config_rom[4],
- 1 << device->max_speed,
- device->config_rom_retries);
- else
- fw_notify("created device %s: GUID %08x%08x, S%d00\n",
- dev_name(&device->device),
- device->config_rom[3], device->config_rom[4],
- 1 << device->max_speed);
+ fw_notice(card, "created device %s: GUID %08x%08x, S%d00\n",
+ dev_name(&device->device),
+ device->config_rom[3], device->config_rom[4],
+ 1 << device->max_speed);
device->config_rom_retries = 0;
set_broadcast_channel(device, device->generation);
* just end up running the IRM work a couple of extra times -
* pretty harmless.
*/
- if (device->node == device->card->root_node)
- fw_schedule_bm_work(device->card, 0);
+ if (device->node == card->root_node)
+ fw_schedule_bm_work(card, 0);
return;
FW_DEVICE_RUNNING) == FW_DEVICE_GONE)
goto gone;
- fw_notify("refreshed device %s\n", dev_name(&device->device));
+ fw_notice(card, "refreshed device %s\n", dev_name(&device->device));
device->config_rom_retries = 0;
goto out;
give_up:
- fw_notify("giving up on refresh of device %s\n", dev_name(&device->device));
+ fw_notice(card, "giving up on refresh of device %s\n",
+ dev_name(&device->device));
gone:
atomic_set(&device->state, FW_DEVICE_GONE);
PREPARE_DELAYED_WORK(&device->work, fw_device_shutdown);
}
EXPORT_SYMBOL(fw_iso_context_queue_flush);
+int fw_iso_context_flush_completions(struct fw_iso_context *ctx)
+{
+ return ctx->card->driver->flush_iso_completions(ctx);
+}
+EXPORT_SYMBOL(fw_iso_context_flush_completions);
+
int fw_iso_context_stop(struct fw_iso_context *ctx)
{
return ctx->card->driver->stop_iso(ctx);
next_sid = count_ports(sid, &port_count, &child_port_count);
if (next_sid == NULL) {
- fw_error("Inconsistent extended self IDs.\n");
+ fw_err(card, "inconsistent extended self IDs\n");
return NULL;
}
q = *sid;
if (phy_id != SELF_ID_PHY_ID(q)) {
- fw_error("PHY ID mismatch in self ID: %d != %d.\n",
- phy_id, SELF_ID_PHY_ID(q));
+ fw_err(card, "PHY ID mismatch in self ID: %d != %d\n",
+ phy_id, SELF_ID_PHY_ID(q));
return NULL;
}
if (child_port_count > stack_depth) {
- fw_error("Topology stack underflow\n");
+ fw_err(card, "topology stack underflow\n");
return NULL;
}
node = fw_node_create(q, port_count, card->color);
if (node == NULL) {
- fw_error("Out of memory while building topology.\n");
+ fw_err(card, "out of memory while building topology\n");
return NULL;
}
*/
if ((next_sid == end && parent_count != 0) ||
(next_sid < end && parent_count != 1)) {
- fw_error("Parent port inconsistency for node %d: "
- "parent_count=%d\n", phy_id, parent_count);
+ fw_err(card, "parent port inconsistency for node %d: "
+ "parent_count=%d\n", phy_id, parent_count);
return NULL;
}
*/
if (!is_next_generation(generation, card->generation) &&
card->local_node != NULL) {
- fw_notify("skipped bus generations, destroying all nodes\n");
fw_destroy_nodes(card);
card->bm_retries = 0;
}
card->color++;
if (local_node == NULL) {
- fw_error("topology build failed\n");
+ fw_err(card, "topology build failed\n");
/* FIXME: We need to issue a bus reset in this case. */
} else if (card->local_node == NULL) {
card->local_node = local_node;
const struct fw_address_region *region)
{
struct fw_address_handler *other;
- unsigned long flags;
int ret = -EBUSY;
if (region->start & 0xffff000000000003ULL ||
handler->length == 0)
return -EINVAL;
- spin_lock_irqsave(&address_handler_lock, flags);
+ spin_lock_bh(&address_handler_lock);
handler->offset = region->start;
while (handler->offset + handler->length <= region->end) {
}
}
- spin_unlock_irqrestore(&address_handler_lock, flags);
+ spin_unlock_bh(&address_handler_lock);
return ret;
}
/**
* fw_core_remove_address_handler() - unregister an address handler
+ *
+ * When fw_core_remove_address_handler() returns, @handler->callback() is
+ * guaranteed to not run on any CPU anymore.
*/
void fw_core_remove_address_handler(struct fw_address_handler *handler)
{
- unsigned long flags;
-
- spin_lock_irqsave(&address_handler_lock, flags);
+ spin_lock_bh(&address_handler_lock);
list_del(&handler->link);
- spin_unlock_irqrestore(&address_handler_lock, flags);
+ spin_unlock_bh(&address_handler_lock);
}
EXPORT_SYMBOL(fw_core_remove_address_handler);
break;
default:
- fw_error("ERROR - corrupt request received - %08x %08x %08x\n",
+ fw_notice(card, "ERROR - corrupt request received - %08x %08x %08x\n",
p->header[0], p->header[1], p->header[2]);
return NULL;
}
unsigned long long offset)
{
struct fw_address_handler *handler;
- unsigned long flags;
int tcode, destination, source;
destination = HEADER_GET_DESTINATION(p->header[0]);
if (tcode == TCODE_LOCK_REQUEST)
tcode = 0x10 + HEADER_GET_EXTENDED_TCODE(p->header[3]);
- spin_lock_irqsave(&address_handler_lock, flags);
+ spin_lock_bh(&address_handler_lock);
handler = lookup_enclosing_address_handler(&address_handler_list,
offset, request->length);
- spin_unlock_irqrestore(&address_handler_lock, flags);
-
- /*
- * FIXME: lookup the fw_node corresponding to the sender of
- * this request and pass that to the address handler instead
- * of the node ID. We may also want to move the address
- * allocations to fw_node so we only do this callback if the
- * upper layers registered it for this node.
- */
-
- if (handler == NULL)
- fw_send_response(card, request, RCODE_ADDRESS_ERROR);
- else
+ if (handler)
handler->address_callback(card, request,
tcode, destination, source,
p->generation, offset,
request->data, request->length,
handler->callback_data);
+ spin_unlock_bh(&address_handler_lock);
+
+ if (!handler)
+ fw_send_response(card, request, RCODE_ADDRESS_ERROR);
}
static void handle_fcp_region_request(struct fw_card *card,
unsigned long long offset)
{
struct fw_address_handler *handler;
- unsigned long flags;
int tcode, destination, source;
if ((offset != (CSR_REGISTER_BASE | CSR_FCP_COMMAND) &&
return;
}
- spin_lock_irqsave(&address_handler_lock, flags);
+ spin_lock_bh(&address_handler_lock);
list_for_each_entry(handler, &address_handler_list, link) {
if (is_enclosing_handler(handler, offset, request->length))
handler->address_callback(card, NULL, tcode,
request->length,
handler->callback_data);
}
- spin_unlock_irqrestore(&address_handler_lock, flags);
+ spin_unlock_bh(&address_handler_lock);
fw_send_response(card, request, RCODE_COMPLETE);
}
if (&t->link == &card->transaction_list) {
timed_out:
- fw_notify("Unsolicited response (source %x, tlabel %x)\n",
+ fw_notice(card, "unsolicited response (source %x, tlabel %x)\n",
source, tlabel);
return;
}
#ifndef _FIREWIRE_CORE_H
#define _FIREWIRE_CORE_H
+#include <linux/compiler.h>
+#include <linux/device.h>
#include <linux/fs.h>
#include <linux/list.h>
#include <linux/idr.h>
/* -card */
+extern __printf(2, 3)
+void fw_err(const struct fw_card *card, const char *fmt, ...);
+extern __printf(2, 3)
+void fw_notice(const struct fw_card *card, const char *fmt, ...);
+
/* bitfields within the PHY registers */
#define PHY_LINK_ACTIVE 0x80
#define PHY_CONTENDER 0x40
void (*flush_queue_iso)(struct fw_iso_context *ctx);
+ int (*flush_iso_completions)(struct fw_iso_context *ctx);
+
int (*stop_iso)(struct fw_iso_context *ctx);
};
extern struct idr fw_device_idr;
extern int fw_cdev_major;
+static inline struct fw_device *fw_device_get(struct fw_device *device)
+{
+ get_device(&device->device);
+
+ return device;
+}
+
+static inline void fw_device_put(struct fw_device *device)
+{
+ put_device(&device->device);
+}
+
struct fw_device *fw_device_get_by_devt(dev_t devt);
int fw_device_set_broadcast_channel(struct device *dev, void *gen);
void fw_node_event(struct fw_card *card, struct fw_node *node, int event);
if (get_unaligned_be16(&h->h_proto) == ETH_P_IP)
return arp_find((unsigned char *)&h->h_dest, skb);
- fw_notify("%s: unable to resolve type %04x addresses\n",
- skb->dev->name, be16_to_cpu(h->h_proto));
+ dev_notice(&skb->dev->dev, "unable to resolve type %04x addresses\n",
+ be16_to_cpu(h->h_proto));
return 0;
}
new = kmalloc(sizeof(*new), GFP_ATOMIC);
if (!new) {
- fw_error("out of memory\n");
+ dev_err(&pd->skb->dev->dev, "out of memory\n");
return NULL;
}
fail_w_new:
kfree(new);
fail:
- fw_error("out of memory\n");
+ dev_err(&net->dev, "out of memory\n");
return NULL;
}
sspd = arp1394->sspd;
/* Sanity check. OS X 10.3 PPC reportedly sends 131. */
if (sspd > SCODE_3200) {
- fw_notify("sspd %x out of range\n", sspd);
+ dev_notice(&net->dev, "sspd %x out of range\n", sspd);
sspd = SCODE_3200;
}
max_payload = fwnet_max_payload(arp1394->max_rec, sspd);
spin_unlock_irqrestore(&dev->lock, flags);
if (!peer) {
- fw_notify("No peer for ARP packet from %016llx\n",
- (unsigned long long)peer_guid);
+ dev_notice(&net->dev,
+ "no peer for ARP packet from %016llx\n",
+ (unsigned long long)peer_guid);
goto no_peer;
}
skb = dev_alloc_skb(len + net->hard_header_len + 15);
if (unlikely(!skb)) {
- fw_error("out of memory\n");
+ dev_err(&net->dev, "out of memory\n");
net->stats.rx_dropped++;
return -ENOMEM;
rcode = RCODE_TYPE_ERROR;
else if (fwnet_incoming_packet(dev, payload, length,
source, generation, false) != 0) {
- fw_error("Incoming packet failure\n");
+ dev_err(&dev->netdev->dev, "incoming packet failure\n");
rcode = RCODE_CONFLICT_ERROR;
} else
rcode = RCODE_COMPLETE;
if (retval >= 0)
fw_iso_context_queue_flush(dev->broadcast_rcv_context);
else
- fw_error("requeue failed\n");
+ dev_err(&dev->netdev->dev, "requeue failed\n");
}
static struct kmem_cache *fwnet_packet_task_cache;
case RFC2374_HDR_LASTFRAG:
case RFC2374_HDR_UNFRAG:
default:
- fw_error("Outstanding packet %x lf %x, header %x,%x\n",
- ptask->outstanding_pkts, lf, ptask->hdr.w0,
- ptask->hdr.w1);
+ dev_err(&dev->netdev->dev,
+ "outstanding packet %x lf %x, header %x,%x\n",
+ ptask->outstanding_pkts, lf, ptask->hdr.w0,
+ ptask->hdr.w1);
BUG();
case RFC2374_HDR_FIRSTFRAG:
fwnet_transmit_packet_failed(ptask);
if (printk_timed_ratelimit(&j, 1000) || rcode != last_rcode) {
- fw_error("fwnet_write_complete: "
- "failed: %x (skipped %d)\n", rcode, errors_skipped);
+ dev_err(&ptask->dev->netdev->dev,
+ "fwnet_write_complete failed: %x (skipped %d)\n",
+ rcode, errors_skipped);
errors_skipped = 0;
last_rcode = rcode;
put_unaligned_be64(card->guid, net->dev_addr);
put_unaligned_be64(~0ULL, net->broadcast);
ret = register_netdev(net);
- if (ret) {
- fw_error("Cannot register the driver\n");
+ if (ret)
goto out;
- }
list_add_tail(&dev->dev_link, &fwnet_device_list);
- fw_notify("%s: IPv4 over FireWire on device %016llx\n",
- net->name, (unsigned long long)card->guid);
+ dev_notice(&net->dev, "IPv4 over IEEE 1394 on card %s\n",
+ dev_name(card->device));
have_dev:
ret = fwnet_add_peer(dev, unit, device);
if (ret && allocated_netdev) {
static struct fw_driver fwnet_driver = {
.driver = {
.owner = THIS_MODULE,
- .name = "net",
+ .name = KBUILD_MODNAME,
.bus = &fw_bus_type,
.probe = fwnet_probe,
.remove = fwnet_remove,
#include <linux/timex.h>
#include <linux/uaccess.h>
#include <linux/wait.h>
-
+#include <linux/dma-mapping.h>
#include <linux/atomic.h>
#include <asm/byteorder.h>
u32 p, end;
int ret, i;
- if (pci_set_dma_mask(dev, 0xffffffff)) {
+ if (pci_set_dma_mask(dev, DMA_BIT_MASK(32))) {
dev_err(&dev->dev,
"DMA address limits not supported for PCILynx hardware\n");
return -ENXIO;
struct iso_context {
struct fw_iso_context base;
struct context context;
- int excess_bytes;
void *header;
size_t header_length;
-
+ unsigned long flushing_completions;
+ u32 mc_buffer_bus;
+ u16 mc_completed;
+ u16 last_timestamp;
u8 sync;
u8 tags;
};
#define OHCI_PARAM_DEBUG_IRQS 4
#define OHCI_PARAM_DEBUG_BUSRESETS 8 /* only effective before chip init */
-#ifdef CONFIG_FIREWIRE_OHCI_DEBUG
-
static int param_debug;
module_param_named(debug, param_debug, int, 0644);
MODULE_PARM_DESC(debug, "Verbose logging (default = 0"
", busReset events = " __stringify(OHCI_PARAM_DEBUG_BUSRESETS)
", or a combination, or all = -1)");
-static void log_irqs(u32 evt)
+static void log_irqs(struct fw_ohci *ohci, u32 evt)
{
if (likely(!(param_debug &
(OHCI_PARAM_DEBUG_IRQS | OHCI_PARAM_DEBUG_BUSRESETS))))
!(evt & OHCI1394_busReset))
return;
- fw_notify("IRQ %08x%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n", evt,
+ dev_notice(ohci->card.device,
+ "IRQ %08x%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n", evt,
evt & OHCI1394_selfIDComplete ? " selfID" : "",
evt & OHCI1394_RQPkt ? " AR_req" : "",
evt & OHCI1394_RSPkt ? " AR_resp" : "",
return port[*s >> shift & 3];
}
-static void log_selfids(int node_id, int generation, int self_id_count, u32 *s)
+static void log_selfids(struct fw_ohci *ohci, int generation, int self_id_count)
{
+ u32 *s;
+
if (likely(!(param_debug & OHCI_PARAM_DEBUG_SELFIDS)))
return;
- fw_notify("%d selfIDs, generation %d, local node ID %04x\n",
- self_id_count, generation, node_id);
+ dev_notice(ohci->card.device,
+ "%d selfIDs, generation %d, local node ID %04x\n",
+ self_id_count, generation, ohci->node_id);
- for (; self_id_count--; ++s)
+ for (s = ohci->self_id_buffer; self_id_count--; ++s)
if ((*s & 1 << 23) == 0)
- fw_notify("selfID 0: %08x, phy %d [%c%c%c] "
+ dev_notice(ohci->card.device,
+ "selfID 0: %08x, phy %d [%c%c%c] "
"%s gc=%d %s %s%s%s\n",
*s, *s >> 24 & 63, _p(s, 6), _p(s, 4), _p(s, 2),
speed[*s >> 14 & 3], *s >> 16 & 63,
power[*s >> 8 & 7], *s >> 22 & 1 ? "L" : "",
*s >> 11 & 1 ? "c" : "", *s & 2 ? "i" : "");
else
- fw_notify("selfID n: %08x, phy %d [%c%c%c%c%c%c%c%c]\n",
+ dev_notice(ohci->card.device,
+ "selfID n: %08x, phy %d [%c%c%c%c%c%c%c%c]\n",
*s, *s >> 24 & 63,
_p(s, 16), _p(s, 14), _p(s, 12), _p(s, 10),
_p(s, 8), _p(s, 6), _p(s, 4), _p(s, 2));
[0xe] = "link internal", [0xf] = "-reserved-",
};
-static void log_ar_at_event(char dir, int speed, u32 *header, int evt)
+static void log_ar_at_event(struct fw_ohci *ohci,
+ char dir, int speed, u32 *header, int evt)
{
int tcode = header[0] >> 4 & 0xf;
char specific[12];
evt = 0x1f;
if (evt == OHCI1394_evt_bus_reset) {
- fw_notify("A%c evt_bus_reset, generation %d\n",
- dir, (header[2] >> 16) & 0xff);
+ dev_notice(ohci->card.device,
+ "A%c evt_bus_reset, generation %d\n",
+ dir, (header[2] >> 16) & 0xff);
return;
}
switch (tcode) {
case 0xa:
- fw_notify("A%c %s, %s\n", dir, evts[evt], tcodes[tcode]);
+ dev_notice(ohci->card.device,
+ "A%c %s, %s\n",
+ dir, evts[evt], tcodes[tcode]);
break;
case 0xe:
- fw_notify("A%c %s, PHY %08x %08x\n",
- dir, evts[evt], header[1], header[2]);
+ dev_notice(ohci->card.device,
+ "A%c %s, PHY %08x %08x\n",
+ dir, evts[evt], header[1], header[2]);
break;
case 0x0: case 0x1: case 0x4: case 0x5: case 0x9:
- fw_notify("A%c spd %x tl %02x, "
- "%04x -> %04x, %s, "
- "%s, %04x%08x%s\n",
- dir, speed, header[0] >> 10 & 0x3f,
- header[1] >> 16, header[0] >> 16, evts[evt],
- tcodes[tcode], header[1] & 0xffff, header[2], specific);
+ dev_notice(ohci->card.device,
+ "A%c spd %x tl %02x, "
+ "%04x -> %04x, %s, "
+ "%s, %04x%08x%s\n",
+ dir, speed, header[0] >> 10 & 0x3f,
+ header[1] >> 16, header[0] >> 16, evts[evt],
+ tcodes[tcode], header[1] & 0xffff, header[2], specific);
break;
default:
- fw_notify("A%c spd %x tl %02x, "
- "%04x -> %04x, %s, "
- "%s%s\n",
- dir, speed, header[0] >> 10 & 0x3f,
- header[1] >> 16, header[0] >> 16, evts[evt],
- tcodes[tcode], specific);
+ dev_notice(ohci->card.device,
+ "A%c spd %x tl %02x, "
+ "%04x -> %04x, %s, "
+ "%s%s\n",
+ dir, speed, header[0] >> 10 & 0x3f,
+ header[1] >> 16, header[0] >> 16, evts[evt],
+ tcodes[tcode], specific);
}
}
-#else
-
-#define param_debug 0
-static inline void log_irqs(u32 evt) {}
-static inline void log_selfids(int node_id, int generation, int self_id_count, u32 *s) {}
-static inline void log_ar_at_event(char dir, int speed, u32 *header, int evt) {}
-
-#endif /* CONFIG_FIREWIRE_OHCI_DEBUG */
-
static inline void reg_write(const struct fw_ohci *ohci, int offset, u32 data)
{
writel(data, ohci->registers + offset);
if (i >= 3)
msleep(1);
}
- fw_error("failed to read phy reg\n");
+ dev_err(ohci->card.device, "failed to read phy reg\n");
return -EBUSY;
}
if (i >= 3)
msleep(1);
}
- fw_error("failed to write phy reg\n");
+ dev_err(ohci->card.device, "failed to write phy reg\n");
return -EBUSY;
}
static void ar_context_abort(struct ar_context *ctx, const char *error_msg)
{
- if (reg_read(ctx->ohci, CONTROL_CLEAR(ctx->regs)) & CONTEXT_RUN) {
- reg_write(ctx->ohci, CONTROL_CLEAR(ctx->regs), CONTEXT_RUN);
- flush_writes(ctx->ohci);
+ struct fw_ohci *ohci = ctx->ohci;
+
+ if (reg_read(ohci, CONTROL_CLEAR(ctx->regs)) & CONTEXT_RUN) {
+ reg_write(ohci, CONTROL_CLEAR(ctx->regs), CONTEXT_RUN);
+ flush_writes(ohci);
- fw_error("AR error: %s; DMA stopped\n", error_msg);
+ dev_err(ohci->card.device, "AR error: %s; DMA stopped\n",
+ error_msg);
}
/* FIXME: restart? */
}
p.timestamp = status & 0xffff;
p.generation = ohci->request_generation;
- log_ar_at_event('R', p.speed, p.header, evt);
+ log_ar_at_event(ohci, 'R', p.speed, p.header, evt);
/*
* Several controllers, notably from NEC and VIA, forget to
static void context_stop(struct context *ctx)
{
+ struct fw_ohci *ohci = ctx->ohci;
u32 reg;
int i;
- reg_write(ctx->ohci, CONTROL_CLEAR(ctx->regs), CONTEXT_RUN);
+ reg_write(ohci, CONTROL_CLEAR(ctx->regs), CONTEXT_RUN);
ctx->running = false;
for (i = 0; i < 1000; i++) {
- reg = reg_read(ctx->ohci, CONTROL_SET(ctx->regs));
+ reg = reg_read(ohci, CONTROL_SET(ctx->regs));
if ((reg & CONTEXT_ACTIVE) == 0)
return;
if (i)
udelay(10);
}
- fw_error("Error: DMA context still active (0x%08x)\n", reg);
+ dev_err(ohci->card.device, "DMA context still active (0x%08x)\n", reg);
}
struct driver_data {
evt = le16_to_cpu(last->transfer_status) & 0x1f;
packet->timestamp = le16_to_cpu(last->res_count);
- log_ar_at_event('T', packet->speed, packet->header, evt);
+ log_ar_at_event(ohci, 'T', packet->speed, packet->header, evt);
switch (evt) {
case OHCI1394_evt_timeout:
goto out;
}
- fw_error("swap not done (CSR lock timeout)\n");
+ dev_err(ohci->card.device, "swap not done (CSR lock timeout)\n");
fw_fill_response(&response, packet->header, RCODE_BUSY, NULL, 0);
out:
u32 ctl;
ctl = reg_read(ohci, CONTROL_SET(regs));
- if (ctl & CONTEXT_DEAD) {
-#ifdef CONFIG_FIREWIRE_OHCI_DEBUG
- fw_error("DMA context %s has stopped, error code: %s\n",
- name, evts[ctl & 0x1f]);
-#else
- fw_error("DMA context %s has stopped, error code: %#x\n",
- name, ctl & 0x1f);
-#endif
- }
+ if (ctl & CONTEXT_DEAD)
+ dev_err(ohci->card.device,
+ "DMA context %s has stopped, error code: %s\n",
+ name, evts[ctl & 0x1f]);
}
static void handle_dead_contexts(struct fw_ohci *ohci)
reg = reg_read(ohci, OHCI1394_NodeID);
if (!(reg & OHCI1394_NodeID_idValid)) {
- fw_notify("node ID not valid, new bus reset in progress\n");
+ dev_notice(ohci->card.device,
+ "node ID not valid, new bus reset in progress\n");
return -EBUSY;
}
self_id |= ((reg & 0x3f) << 24); /* phy ID */
reg = reg_read(ohci, OHCI1394_NodeID);
if (!(reg & OHCI1394_NodeID_idValid)) {
- fw_notify("node ID not valid, new bus reset in progress\n");
+ dev_notice(ohci->card.device,
+ "node ID not valid, new bus reset in progress\n");
return;
}
if ((reg & OHCI1394_NodeID_nodeNumber) == 63) {
- fw_notify("malconfigured bus\n");
+ dev_notice(ohci->card.device, "malconfigured bus\n");
return;
}
ohci->node_id = reg & (OHCI1394_NodeID_busNumber |
reg = reg_read(ohci, OHCI1394_SelfIDCount);
if (reg & OHCI1394_SelfIDCount_selfIDError) {
- fw_notify("inconsistent self IDs\n");
+ dev_notice(ohci->card.device, "inconsistent self IDs\n");
return;
}
/*
self_id_count = (reg >> 3) & 0xff;
if (self_id_count > 252) {
- fw_notify("inconsistent self IDs\n");
+ dev_notice(ohci->card.device, "inconsistent self IDs\n");
return;
}
*/
if (cond_le32_to_cpu(ohci->self_id_cpu[i])
== 0xffff008f) {
- fw_notify("ignoring spurious self IDs\n");
+ dev_notice(ohci->card.device,
+ "ignoring spurious self IDs\n");
self_id_count = j;
break;
} else {
- fw_notify("inconsistent self IDs\n");
+ dev_notice(ohci->card.device,
+ "inconsistent self IDs\n");
return;
}
}
if (ohci->quirks & QUIRK_TI_SLLZ059) {
self_id_count = find_and_insert_self_id(ohci, self_id_count);
if (self_id_count < 0) {
- fw_notify("could not construct local self ID\n");
+ dev_notice(ohci->card.device,
+ "could not construct local self ID\n");
return;
}
}
if (self_id_count == 0) {
- fw_notify("inconsistent self IDs\n");
+ dev_notice(ohci->card.device, "inconsistent self IDs\n");
return;
}
rmb();
new_generation = (reg_read(ohci, OHCI1394_SelfIDCount) >> 16) & 0xff;
if (new_generation != generation) {
- fw_notify("recursive bus reset detected, "
- "discarding self ids\n");
+ dev_notice(ohci->card.device,
+ "new bus reset, discarding self ids\n");
return;
}
dma_free_coherent(ohci->card.device, CONFIG_ROM_SIZE,
free_rom, free_rom_bus);
- log_selfids(ohci->node_id, generation,
- self_id_count, ohci->self_id_buffer);
+ log_selfids(ohci, generation, self_id_count);
fw_core_handle_bus_reset(&ohci->card, ohci->node_id, generation,
self_id_count, ohci->self_id_buffer,
*/
reg_write(ohci, OHCI1394_IntEventClear,
event & ~(OHCI1394_busReset | OHCI1394_postedWriteErr));
- log_irqs(event);
+ log_irqs(ohci, event);
if (event & OHCI1394_selfIDComplete)
queue_work(fw_workqueue, &ohci->bus_reset_work);
}
if (unlikely(event & OHCI1394_regAccessFail))
- fw_error("Register access failure - "
- "please notify linux1394-devel@lists.sf.net\n");
+ dev_err(ohci->card.device, "register access failure\n");
if (unlikely(event & OHCI1394_postedWriteErr)) {
reg_read(ohci, OHCI1394_PostedWriteAddressHi);
reg_write(ohci, OHCI1394_IntEventClear,
OHCI1394_postedWriteErr);
if (printk_ratelimit())
- fw_error("PCI posted write error\n");
+ dev_err(ohci->card.device, "PCI posted write error\n");
}
if (unlikely(event & OHCI1394_cycleTooLong)) {
if (printk_ratelimit())
- fw_notify("isochronous cycle too long\n");
+ dev_notice(ohci->card.device,
+ "isochronous cycle too long\n");
reg_write(ohci, OHCI1394_LinkControlSet,
OHCI1394_LinkControl_cycleMaster);
}
* them at least two cycles later. (FIXME?)
*/
if (printk_ratelimit())
- fw_notify("isochronous cycle inconsistent\n");
+ dev_notice(ohci->card.device,
+ "isochronous cycle inconsistent\n");
}
if (unlikely(event & OHCI1394_unrecoverableError))
int i, ret;
if (software_reset(ohci)) {
- fw_error("Failed to reset ohci card.\n");
+ dev_err(card->device, "failed to reset ohci card\n");
return -EBUSY;
}
}
if (!lps) {
- fw_error("Failed to set Link Power Status\n");
+ dev_err(card->device, "failed to set Link Power Status\n");
return -EIO;
}
if (ret < 0)
return ret;
if (ret)
- fw_notify("local TSB41BA3D phy\n");
+ dev_notice(card->device, "local TSB41BA3D phy\n");
else
ohci->quirks &= ~QUIRK_TI_SLLZ059;
}
if (request_irq(dev->irq, irq_handler,
pci_dev_msi_enabled(dev) ? 0 : IRQF_SHARED,
ohci_driver_name, ohci)) {
- fw_error("Failed to allocate interrupt %d.\n", dev->irq);
+ dev_err(card->device, "failed to allocate interrupt %d\n",
+ dev->irq);
pci_disable_msi(dev);
if (config_rom) {
dma_unmap_single(ohci->card.device, packet->payload_bus,
packet->payload_length, DMA_TO_DEVICE);
- log_ar_at_event('T', packet->speed, packet->header, 0x20);
+ log_ar_at_event(ohci, 'T', packet->speed, packet->header, 0x20);
driver_data->packet = NULL;
packet->ack = RCODE_CANCELLED;
packet->callback(packet, &ohci->card, packet->ack);
}
}
-static void copy_iso_headers(struct iso_context *ctx, void *p)
+static void flush_iso_completions(struct iso_context *ctx)
{
- int i = ctx->header_length;
+ ctx->base.callback.sc(&ctx->base, ctx->last_timestamp,
+ ctx->header_length, ctx->header,
+ ctx->base.callback_data);
+ ctx->header_length = 0;
+}
- if (i + ctx->base.header_size > PAGE_SIZE)
- return;
+static void copy_iso_headers(struct iso_context *ctx, const u32 *dma_hdr)
+{
+ u32 *ctx_hdr;
+
+ if (ctx->header_length + ctx->base.header_size > PAGE_SIZE)
+ flush_iso_completions(ctx);
+
+ ctx_hdr = ctx->header + ctx->header_length;
+ ctx->last_timestamp = (u16)le32_to_cpu((__force __le32)dma_hdr[0]);
/*
- * The iso header is byteswapped to little endian by
- * the controller, but the remaining header quadlets
- * are big endian. We want to present all the headers
- * as big endian, so we have to swap the first quadlet.
+ * The two iso header quadlets are byteswapped to little
+ * endian by the controller, but we want to present them
+ * as big endian for consistency with the bus endianness.
*/
if (ctx->base.header_size > 0)
- *(u32 *) (ctx->header + i) = __swab32(*(u32 *) (p + 4));
+ ctx_hdr[0] = swab32(dma_hdr[1]); /* iso packet header */
if (ctx->base.header_size > 4)
- *(u32 *) (ctx->header + i + 4) = __swab32(*(u32 *) p);
+ ctx_hdr[1] = swab32(dma_hdr[0]); /* timestamp */
if (ctx->base.header_size > 8)
- memcpy(ctx->header + i + 8, p + 8, ctx->base.header_size - 8);
+ memcpy(&ctx_hdr[2], &dma_hdr[2], ctx->base.header_size - 8);
ctx->header_length += ctx->base.header_size;
}
container_of(context, struct iso_context, context);
struct descriptor *pd;
u32 buffer_dma;
- __le32 *ir_header;
- void *p;
for (pd = d; pd <= last; pd++)
if (pd->transfer_status)
DMA_FROM_DEVICE);
}
- p = last + 1;
- copy_iso_headers(ctx, p);
+ copy_iso_headers(ctx, (u32 *) (last + 1));
- if (le16_to_cpu(last->control) & DESCRIPTOR_IRQ_ALWAYS) {
- ir_header = (__le32 *) p;
- ctx->base.callback.sc(&ctx->base,
- le32_to_cpu(ir_header[0]) & 0xffff,
- ctx->header_length, ctx->header,
- ctx->base.callback_data);
- ctx->header_length = 0;
- }
+ if (last->control & cpu_to_le16(DESCRIPTOR_IRQ_ALWAYS))
+ flush_iso_completions(ctx);
return 1;
}
{
struct iso_context *ctx =
container_of(context, struct iso_context, context);
+ unsigned int req_count, res_count, completed;
u32 buffer_dma;
- if (!last->transfer_status)
+ req_count = le16_to_cpu(last->req_count);
+ res_count = le16_to_cpu(ACCESS_ONCE(last->res_count));
+ completed = req_count - res_count;
+ buffer_dma = le32_to_cpu(last->data_address);
+
+ if (completed > 0) {
+ ctx->mc_buffer_bus = buffer_dma;
+ ctx->mc_completed = completed;
+ }
+
+ if (res_count != 0)
/* Descriptor(s) not done yet, stop iteration */
return 0;
- buffer_dma = le32_to_cpu(last->data_address);
dma_sync_single_range_for_cpu(context->ohci->card.device,
buffer_dma & PAGE_MASK,
buffer_dma & ~PAGE_MASK,
- le16_to_cpu(last->req_count),
- DMA_FROM_DEVICE);
+ completed, DMA_FROM_DEVICE);
- if (le16_to_cpu(last->control) & DESCRIPTOR_IRQ_ALWAYS)
+ if (last->control & cpu_to_le16(DESCRIPTOR_IRQ_ALWAYS)) {
ctx->base.callback.mc(&ctx->base,
- le32_to_cpu(last->data_address) +
- le16_to_cpu(last->req_count) -
- le16_to_cpu(last->res_count),
+ buffer_dma + completed,
ctx->base.callback_data);
+ ctx->mc_completed = 0;
+ }
return 1;
}
+static void flush_ir_buffer_fill(struct iso_context *ctx)
+{
+ dma_sync_single_range_for_cpu(ctx->context.ohci->card.device,
+ ctx->mc_buffer_bus & PAGE_MASK,
+ ctx->mc_buffer_bus & ~PAGE_MASK,
+ ctx->mc_completed, DMA_FROM_DEVICE);
+
+ ctx->base.callback.mc(&ctx->base,
+ ctx->mc_buffer_bus + ctx->mc_completed,
+ ctx->base.callback_data);
+ ctx->mc_completed = 0;
+}
+
static inline void sync_it_packet_for_cpu(struct context *context,
struct descriptor *pd)
{
{
struct iso_context *ctx =
container_of(context, struct iso_context, context);
- int i;
struct descriptor *pd;
+ __be32 *ctx_hdr;
for (pd = d; pd <= last; pd++)
if (pd->transfer_status)
sync_it_packet_for_cpu(context, d);
- i = ctx->header_length;
- if (i + 4 < PAGE_SIZE) {
- /* Present this value as big-endian to match the receive code */
- *(__be32 *)(ctx->header + i) = cpu_to_be32(
- ((u32)le16_to_cpu(pd->transfer_status) << 16) |
- le16_to_cpu(pd->res_count));
- ctx->header_length += 4;
- }
- if (le16_to_cpu(last->control) & DESCRIPTOR_IRQ_ALWAYS) {
- ctx->base.callback.sc(&ctx->base, le16_to_cpu(last->res_count),
- ctx->header_length, ctx->header,
- ctx->base.callback_data);
- ctx->header_length = 0;
- }
+ if (ctx->header_length + 4 > PAGE_SIZE)
+ flush_iso_completions(ctx);
+
+ ctx_hdr = ctx->header + ctx->header_length;
+ ctx->last_timestamp = le16_to_cpu(last->res_count);
+ /* Present this value as big-endian to match the receive code */
+ *ctx_hdr = cpu_to_be32((le16_to_cpu(pd->transfer_status) << 16) |
+ le16_to_cpu(pd->res_count));
+ ctx->header_length += 4;
+
+ if (last->control & cpu_to_le16(DESCRIPTOR_IRQ_ALWAYS))
+ flush_iso_completions(ctx);
+
return 1;
}
if (ret < 0)
goto out_with_header;
- if (type == FW_ISO_CONTEXT_RECEIVE_MULTICHANNEL)
+ if (type == FW_ISO_CONTEXT_RECEIVE_MULTICHANNEL) {
set_multichannel_mask(ohci, 0);
+ ctx->mc_completed = 0;
+ }
return &ctx->base;
reg_write(ctx->ohci, CONTROL_SET(ctx->regs), CONTEXT_WAKE);
}
+static int ohci_flush_iso_completions(struct fw_iso_context *base)
+{
+ struct iso_context *ctx = container_of(base, struct iso_context, base);
+ int ret = 0;
+
+ tasklet_disable(&ctx->context.tasklet);
+
+ if (!test_and_set_bit_lock(0, &ctx->flushing_completions)) {
+ context_tasklet((unsigned long)&ctx->context);
+
+ switch (base->type) {
+ case FW_ISO_CONTEXT_TRANSMIT:
+ case FW_ISO_CONTEXT_RECEIVE:
+ if (ctx->header_length != 0)
+ flush_iso_completions(ctx);
+ break;
+ case FW_ISO_CONTEXT_RECEIVE_MULTICHANNEL:
+ if (ctx->mc_completed != 0)
+ flush_ir_buffer_fill(ctx);
+ break;
+ default:
+ ret = -ENOSYS;
+ }
+
+ clear_bit_unlock(0, &ctx->flushing_completions);
+ smp_mb__after_clear_bit();
+ }
+
+ tasklet_enable(&ctx->context.tasklet);
+
+ return ret;
+}
+
static const struct fw_card_driver ohci_driver = {
.enable = ohci_enable,
.read_phy_reg = ohci_read_phy_reg,
.set_iso_channels = ohci_set_iso_channels,
.queue_iso = ohci_queue_iso,
.flush_queue_iso = ohci_flush_queue_iso,
+ .flush_iso_completions = ohci_flush_iso_completions,
.start_iso = ohci_start_iso,
.stop_iso = ohci_stop_iso,
};
err = pci_enable_device(dev);
if (err) {
- fw_error("Failed to enable OHCI hardware\n");
+ dev_err(&dev->dev, "failed to enable OHCI hardware\n");
goto fail_free;
}
err = pci_request_region(dev, 0, ohci_driver_name);
if (err) {
- fw_error("MMIO resource unavailable\n");
+ dev_err(&dev->dev, "MMIO resource unavailable\n");
goto fail_disable;
}
ohci->registers = pci_iomap(dev, 0, OHCI1394_REGISTER_SIZE);
if (ohci->registers == NULL) {
- fw_error("Failed to remap registers\n");
+ dev_err(&dev->dev, "failed to remap registers\n");
err = -ENXIO;
goto fail_iomem;
}
goto fail_contexts;
version = reg_read(ohci, OHCI1394_Version) & 0x00ff00ff;
- fw_notify("Added fw-ohci device %s, OHCI v%x.%x, "
+ dev_notice(&dev->dev,
+ "added OHCI v%x.%x device as card %d, "
"%d IR + %d IT contexts, quirks 0x%x\n",
- dev_name(&dev->dev), version >> 16, version & 0xff,
+ version >> 16, version & 0xff, ohci->card.index,
ohci->n_ir, ohci->n_it, ohci->quirks);
return 0;
pmac_ohci_off(dev);
fail:
if (err == -ENOMEM)
- fw_error("Out of memory\n");
+ dev_err(&dev->dev, "out of memory\n");
return err;
}
kfree(ohci);
pmac_ohci_off(dev);
- fw_notify("Removed fw-ohci device.\n");
+ dev_notice(&dev->dev, "removed fw-ohci device\n");
}
#ifdef CONFIG_PM
pci_disable_msi(dev);
err = pci_save_state(dev);
if (err) {
- fw_error("pci_save_state failed\n");
+ dev_err(&dev->dev, "pci_save_state failed\n");
return err;
}
err = pci_set_power_state(dev, pci_choose_state(dev, state));
if (err)
- fw_error("pci_set_power_state failed with %d\n", err);
+ dev_err(&dev->dev, "pci_set_power_state failed with %d\n", err);
pmac_ohci_off(dev);
return 0;
pci_restore_state(dev);
err = pci_enable_device(dev);
if (err) {
- fw_error("pci_enable_device failed\n");
+ dev_err(&dev->dev, "pci_enable_device failed\n");
return err;
}
", override internal blacklist = " __stringify(SBP2_WORKAROUND_OVERRIDE)
", or a combination)");
-static const char sbp2_driver_name[] = "sbp2";
-
/*
* We create one struct sbp2_logical_unit per SBP-2 Logical Unit Number Entry
* and one struct scsi_device per sbp2_logical_unit.
*/
struct sbp2_target {
struct fw_unit *unit;
- const char *bus_id;
struct list_head lu_list;
u64 management_agent_address;
int blocked; /* ditto */
};
-static struct fw_device *target_device(struct sbp2_target *tgt)
+static struct fw_device *target_parent_device(struct sbp2_target *tgt)
{
return fw_parent_device(tgt->unit);
}
+static const struct device *tgt_dev(const struct sbp2_target *tgt)
+{
+ return &tgt->unit->device;
+}
+
+static const struct device *lu_dev(const struct sbp2_logical_unit *lu)
+{
+ return &lu->tgt->unit->device;
+}
+
/* Impossible login_id, to detect logout attempt before successful login */
#define INVALID_LOGIN_ID 0x10000
#define SBP2_CSR_UNIT_CHARACTERISTICS 0x3a
#define SBP2_CSR_FIRMWARE_REVISION 0x3c
#define SBP2_CSR_LOGICAL_UNIT_NUMBER 0x14
+#define SBP2_CSR_UNIT_UNIQUE_ID 0x8d
#define SBP2_CSR_LOGICAL_UNIT_DIRECTORY 0xd4
/* Management orb opcodes */
memcpy(status.data, payload + 8, length - 8);
if (STATUS_GET_SOURCE(status) == 2 || STATUS_GET_SOURCE(status) == 3) {
- fw_notify("non-orb related status write, not handled\n");
+ dev_notice(lu_dev(lu),
+ "non-ORB related status write, not handled\n");
fw_send_response(card, request, RCODE_COMPLETE);
return;
}
orb->callback(orb, &status);
kref_put(&orb->kref, free_orb); /* orb callback reference */
} else {
- fw_error("status write for unknown orb\n");
+ dev_err(lu_dev(lu), "status write for unknown ORB\n");
}
fw_send_response(card, request, RCODE_COMPLETE);
static void sbp2_send_orb(struct sbp2_orb *orb, struct sbp2_logical_unit *lu,
int node_id, int generation, u64 offset)
{
- struct fw_device *device = target_device(lu->tgt);
+ struct fw_device *device = target_parent_device(lu->tgt);
struct sbp2_pointer orb_pointer;
unsigned long flags;
static int sbp2_cancel_orbs(struct sbp2_logical_unit *lu)
{
- struct fw_device *device = target_device(lu->tgt);
+ struct fw_device *device = target_parent_device(lu->tgt);
struct sbp2_orb *orb, *next;
struct list_head list;
unsigned long flags;
int generation, int function,
int lun_or_login_id, void *response)
{
- struct fw_device *device = target_device(lu->tgt);
+ struct fw_device *device = target_parent_device(lu->tgt);
struct sbp2_management_orb *orb;
unsigned int timeout;
int retval = -ENOMEM;
if (function == SBP2_LOGOUT_REQUEST && fw_device_is_shutdown(device))
return 0;
- orb = kzalloc(sizeof(*orb), GFP_ATOMIC);
+ orb = kzalloc(sizeof(*orb), GFP_NOIO);
if (orb == NULL)
return -ENOMEM;
retval = -EIO;
if (sbp2_cancel_orbs(lu) == 0) {
- fw_error("%s: orb reply timed out, rcode=0x%02x\n",
- lu->tgt->bus_id, orb->base.rcode);
+ dev_err(lu_dev(lu), "ORB reply timed out, rcode 0x%02x\n",
+ orb->base.rcode);
goto out;
}
if (orb->base.rcode != RCODE_COMPLETE) {
- fw_error("%s: management write failed, rcode 0x%02x\n",
- lu->tgt->bus_id, orb->base.rcode);
+ dev_err(lu_dev(lu), "management write failed, rcode 0x%02x\n",
+ orb->base.rcode);
goto out;
}
if (STATUS_GET_RESPONSE(orb->status) != 0 ||
STATUS_GET_SBP_STATUS(orb->status) != 0) {
- fw_error("%s: error status: %d:%d\n", lu->tgt->bus_id,
+ dev_err(lu_dev(lu), "error status: %d:%d\n",
STATUS_GET_RESPONSE(orb->status),
STATUS_GET_SBP_STATUS(orb->status));
goto out;
static void sbp2_agent_reset(struct sbp2_logical_unit *lu)
{
- struct fw_device *device = target_device(lu->tgt);
+ struct fw_device *device = target_parent_device(lu->tgt);
__be32 d = 0;
fw_run_transaction(device->card, TCODE_WRITE_QUADLET_REQUEST,
static void sbp2_agent_reset_no_wait(struct sbp2_logical_unit *lu)
{
- struct fw_device *device = target_device(lu->tgt);
+ struct fw_device *device = target_parent_device(lu->tgt);
struct fw_transaction *t;
static __be32 d;
static void sbp2_conditionally_block(struct sbp2_logical_unit *lu)
{
struct sbp2_target *tgt = lu->tgt;
- struct fw_card *card = target_device(tgt)->card;
+ struct fw_card *card = target_parent_device(tgt)->card;
struct Scsi_Host *shost =
container_of((void *)tgt, struct Scsi_Host, hostdata[0]);
unsigned long flags;
static void sbp2_conditionally_unblock(struct sbp2_logical_unit *lu)
{
struct sbp2_target *tgt = lu->tgt;
- struct fw_card *card = target_device(tgt)->card;
+ struct fw_card *card = target_parent_device(tgt)->card;
struct Scsi_Host *shost =
container_of((void *)tgt, struct Scsi_Host, hostdata[0]);
unsigned long flags;
*/
static void sbp2_unblock(struct sbp2_target *tgt)
{
- struct fw_card *card = target_device(tgt)->card;
+ struct fw_card *card = target_parent_device(tgt)->card;
struct Scsi_Host *shost =
container_of((void *)tgt, struct Scsi_Host, hostdata[0]);
unsigned long flags;
*/
static void sbp2_set_busy_timeout(struct sbp2_logical_unit *lu)
{
- struct fw_device *device = target_device(lu->tgt);
+ struct fw_device *device = target_parent_device(lu->tgt);
__be32 d = cpu_to_be32(SBP2_CYCLE_LIMIT | SBP2_RETRY_LIMIT);
fw_run_transaction(device->card, TCODE_WRITE_QUADLET_REQUEST,
struct sbp2_logical_unit *lu =
container_of(work, struct sbp2_logical_unit, work.work);
struct sbp2_target *tgt = lu->tgt;
- struct fw_device *device = target_device(tgt);
+ struct fw_device *device = target_parent_device(tgt);
struct Scsi_Host *shost;
struct scsi_device *sdev;
struct sbp2_login_response response;
if (lu->retries++ < 5) {
sbp2_queue_work(lu, DIV_ROUND_UP(HZ, 5));
} else {
- fw_error("%s: failed to login to LUN %04x\n",
- tgt->bus_id, lu->lun);
+ dev_err(tgt_dev(tgt), "failed to login to LUN %04x\n",
+ lu->lun);
/* Let any waiting I/O fail from now on. */
sbp2_unblock(lu->tgt);
}
<< 32) | be32_to_cpu(response.command_block_agent.low);
lu->login_id = be32_to_cpu(response.misc) & 0xffff;
- fw_notify("%s: logged in to LUN %04x (%d retries)\n",
- tgt->bus_id, lu->lun, lu->retries);
+ dev_notice(tgt_dev(tgt), "logged in to LUN %04x (%d retries)\n",
+ lu->lun, lu->retries);
/* set appropriate retry limit(s) in BUSY_TIMEOUT register */
sbp2_set_busy_timeout(lu);
struct sbp2_logical_unit *lu =
container_of(work, struct sbp2_logical_unit, work.work);
struct sbp2_target *tgt = lu->tgt;
- struct fw_device *device = target_device(tgt);
+ struct fw_device *device = target_parent_device(tgt);
int generation, node_id, local_node_id;
if (fw_device_is_shutdown(device))
smp_rmb(); /* get current card generation */
if (generation == device->card->generation ||
lu->retries++ >= 5) {
- fw_error("%s: failed to reconnect\n", tgt->bus_id);
+ dev_err(tgt_dev(tgt), "failed to reconnect\n");
lu->retries = 0;
PREPARE_DELAYED_WORK(&lu->work, sbp2_login);
}
smp_wmb(); /* node IDs must not be older than generation */
lu->generation = generation;
- fw_notify("%s: reconnected to LUN %04x (%d retries)\n",
- tgt->bus_id, lu->lun, lu->retries);
+ dev_notice(tgt_dev(tgt), "reconnected to LUN %04x (%d retries)\n",
+ lu->lun, lu->retries);
sbp2_agent_reset(lu);
sbp2_cancel_orbs(lu);
return 0;
}
+static void sbp2_get_unit_unique_id(struct sbp2_target *tgt,
+ const u32 *leaf)
+{
+ if ((leaf[0] & 0xffff0000) == 0x00020000)
+ tgt->guid = (u64)leaf[1] << 32 | leaf[2];
+}
+
static int sbp2_scan_logical_unit_dir(struct sbp2_target *tgt,
const u32 *directory)
{
return -ENOMEM;
break;
+ case SBP2_CSR_UNIT_UNIQUE_ID:
+ sbp2_get_unit_unique_id(tgt, ci.p - 1 + value);
+ break;
+
case SBP2_CSR_LOGICAL_UNIT_DIRECTORY:
/* Adjust for the increment in the iterator */
if (sbp2_scan_logical_unit_dir(tgt, ci.p - 1 + value) < 0)
unsigned int timeout = tgt->mgt_orb_timeout;
if (timeout > 40000)
- fw_notify("%s: %ds mgt_ORB_timeout limited to 40s\n",
- tgt->bus_id, timeout / 1000);
+ dev_notice(tgt_dev(tgt), "%ds mgt_ORB_timeout limited to 40s\n",
+ timeout / 1000);
tgt->mgt_orb_timeout = clamp_val(timeout, 5000, 40000);
}
unsigned int w = sbp2_param_workarounds;
if (w)
- fw_notify("Please notify linux1394-devel@lists.sourceforge.net "
- "if you need the workarounds parameter for %s\n",
- tgt->bus_id);
+ dev_notice(tgt_dev(tgt),
+ "Please notify linux1394-devel@lists.sf.net "
+ "if you need the workarounds parameter\n");
if (w & SBP2_WORKAROUND_OVERRIDE)
goto out;
}
out:
if (w)
- fw_notify("Workarounds for %s: 0x%x "
- "(firmware_revision 0x%06x, model_id 0x%06x)\n",
- tgt->bus_id, w, firmware_revision, model);
+ dev_notice(tgt_dev(tgt), "workarounds 0x%x "
+ "(firmware_revision 0x%06x, model_id 0x%06x)\n",
+ w, firmware_revision, model);
tgt->workarounds = w;
}
struct Scsi_Host *shost;
u32 model, firmware_revision;
+ /* cannot (or should not) handle targets on the local node */
+ if (device->is_local)
+ return -ENODEV;
+
if (dma_get_max_seg_size(device->card->device) > SBP2_MAX_SEG_SIZE)
BUG_ON(dma_set_max_seg_size(device->card->device,
SBP2_MAX_SEG_SIZE));
dev_set_drvdata(&unit->device, tgt);
tgt->unit = unit;
INIT_LIST_HEAD(&tgt->lu_list);
- tgt->bus_id = dev_name(&unit->device);
tgt->guid = (u64)device->config_rom[3] << 32 | device->config_rom[4];
if (fw_device_enable_phys_dma(device) < 0)
kfree(lu);
}
scsi_remove_host(shost);
- fw_notify("released %s, target %d:0:0\n", tgt->bus_id, shost->host_no);
+ dev_notice(dev, "released target %d:0:0\n", shost->host_no);
scsi_host_put(shost);
return 0;
static struct fw_driver sbp2_driver = {
.driver = {
.owner = THIS_MODULE,
- .name = sbp2_driver_name,
+ .name = KBUILD_MODNAME,
.bus = &fw_bus_type,
.probe = sbp2_probe,
.remove = sbp2_remove,
static unsigned int sbp2_status_to_sense_data(u8 *sbp2_status, u8 *sense_data)
{
int sam_status;
+ int sfmt = (sbp2_status[0] >> 6) & 0x03;
+
+ if (sfmt == 2 || sfmt == 3) {
+ /*
+ * Reserved for future standardization (2) or
+ * Status block format vendor-dependent (3)
+ */
+ return DID_ERROR << 16;
+ }
- sense_data[0] = 0x70;
+ sense_data[0] = 0x70 | sfmt | (sbp2_status[1] & 0x80);
sense_data[1] = 0x0;
- sense_data[2] = sbp2_status[1];
+ sense_data[2] = ((sbp2_status[1] << 1) & 0xe0) | (sbp2_status[1] & 0x0f);
sense_data[3] = sbp2_status[4];
sense_data[4] = sbp2_status[5];
sense_data[5] = sbp2_status[6];
{
struct sbp2_command_orb *orb =
container_of(base_orb, struct sbp2_command_orb, base);
- struct fw_device *device = target_device(orb->lu->tgt);
+ struct fw_device *device = target_parent_device(orb->lu->tgt);
int result;
if (status != NULL) {
struct scsi_cmnd *cmd)
{
struct sbp2_logical_unit *lu = cmd->device->hostdata;
- struct fw_device *device = target_device(lu->tgt);
+ struct fw_device *device = target_parent_device(lu->tgt);
struct sbp2_command_orb *orb;
int generation, retval = SCSI_MLQUEUE_HOST_BUSY;
* transfer direction not handled.
*/
if (cmd->sc_data_direction == DMA_BIDIRECTIONAL) {
- fw_error("Can't handle DMA_BIDIRECTIONAL, rejecting command\n");
+ dev_err(lu_dev(lu), "cannot handle bidirectional command\n");
cmd->result = DID_ERROR << 16;
cmd->scsi_done(cmd);
return 0;
orb = kzalloc(sizeof(*orb), GFP_ATOMIC);
if (orb == NULL) {
- fw_notify("failed to alloc orb\n");
+ dev_notice(lu_dev(lu), "failed to alloc ORB\n");
return SCSI_MLQUEUE_HOST_BUSY;
}
{
struct sbp2_logical_unit *lu = cmd->device->hostdata;
- fw_notify("%s: sbp2_scsi_abort\n", lu->tgt->bus_id);
+ dev_notice(lu_dev(lu), "sbp2_scsi_abort\n");
sbp2_agent_reset(lu);
sbp2_cancel_orbs(lu);
static struct scsi_host_template scsi_driver_template = {
.module = THIS_MODULE,
.name = "SBP-2 IEEE-1394",
- .proc_name = sbp2_driver_name,
+ .proc_name = "sbp2",
.queuecommand = sbp2_scsi_queuecommand,
.slave_alloc = sbp2_scsi_slave_alloc,
.slave_configure = sbp2_scsi_slave_configure,
* @closure: See &fw_cdev_event_common;
* set by %FW_CDEV_CREATE_ISO_CONTEXT ioctl
* @type: See &fw_cdev_event_common; always %FW_CDEV_EVENT_ISO_INTERRUPT
- * @cycle: Cycle counter of the interrupt packet
+ * @cycle: Cycle counter of the last completed packet
* @header_length: Total length of following headers, in bytes
* @header: Stripped headers, if any
*
* This event is sent when the controller has completed an &fw_cdev_iso_packet
- * with the %FW_CDEV_ISO_INTERRUPT bit set.
+ * with the %FW_CDEV_ISO_INTERRUPT bit set, when explicitly requested with
+ * %FW_CDEV_IOC_FLUSH_ISO, or when there have been so many completed packets
+ * without the interrupt bit set that the kernel's internal buffer for @header
+ * is about to overflow. (In the last case, kernels with ABI version < 5 drop
+ * header data up to the next interrupt packet.)
*
* Isochronous transmit events (context type %FW_CDEV_ISO_CONTEXT_TRANSMIT):
*
*
* This event is sent in multichannel contexts (context type
* %FW_CDEV_ISO_CONTEXT_RECEIVE_MULTICHANNEL) for &fw_cdev_iso_packet buffer
- * chunks that have the %FW_CDEV_ISO_INTERRUPT bit set. Whether this happens
- * when a packet is completed and/or when a buffer chunk is completed depends
- * on the hardware implementation.
+ * chunks that have been completely filled and that have the
+ * %FW_CDEV_ISO_INTERRUPT bit set, or when explicitly requested with
+ * %FW_CDEV_IOC_FLUSH_ISO.
*
* The buffer is continuously filled with the following data, per packet:
* - the 1394 iso packet header as described at &fw_cdev_event_iso_interrupt,
#define FW_CDEV_IOC_RECEIVE_PHY_PACKETS _IOW('#', 0x16, struct fw_cdev_receive_phy_packets)
#define FW_CDEV_IOC_SET_ISO_CHANNELS _IOW('#', 0x17, struct fw_cdev_set_iso_channels)
+/* available since kernel version 3.4 */
+#define FW_CDEV_IOC_FLUSH_ISO _IOW('#', 0x18, struct fw_cdev_flush_iso)
+
/*
* ABI version history
* 1 (2.6.22) - initial version
* - added %FW_CDEV_EVENT_ISO_INTERRUPT_MULTICHANNEL,
* %FW_CDEV_ISO_CONTEXT_RECEIVE_MULTICHANNEL, and
* %FW_CDEV_IOC_SET_ISO_CHANNELS
+ * 5 (3.4) - send %FW_CDEV_EVENT_ISO_INTERRUPT events when needed to
+ * avoid dropping data
+ * - added %FW_CDEV_IOC_FLUSH_ISO
*/
/**
__u32 handle;
};
+/**
+ * struct fw_cdev_flush_iso - flush completed iso packets
+ * @handle: handle of isochronous context to flush
+ *
+ * For %FW_CDEV_ISO_CONTEXT_TRANSMIT or %FW_CDEV_ISO_CONTEXT_RECEIVE contexts,
+ * report any completed packets.
+ *
+ * For %FW_CDEV_ISO_CONTEXT_RECEIVE_MULTICHANNEL contexts, report the current
+ * offset in the receive buffer, if it has changed; this is typically in the
+ * middle of some buffer chunk.
+ *
+ * Any %FW_CDEV_EVENT_ISO_INTERRUPT or %FW_CDEV_EVENT_ISO_INTERRUPT_MULTICHANNEL
+ * events generated by this ioctl are sent synchronously, i.e., are available
+ * for reading from the file descriptor when this ioctl returns.
+ */
+struct fw_cdev_flush_iso {
+ __u32 handle;
+};
+
/**
* struct fw_cdev_get_cycle_timer - read cycle timer register
* @local_time: system time, in microseconds since the Epoch
#include <linux/atomic.h>
#include <asm/byteorder.h>
-#define fw_notify(s, args...) printk(KERN_NOTICE KBUILD_MODNAME ": " s, ## args)
-#define fw_error(s, args...) printk(KERN_ERR KBUILD_MODNAME ": " s, ## args)
-
#define CSR_REGISTER_BASE 0xfffff0000000ULL
/* register offsets are relative to CSR_REGISTER_BASE */
return atomic_read(&device->state) == FW_DEVICE_SHUTDOWN;
}
-static inline struct fw_device *fw_device_get(struct fw_device *device)
-{
- get_device(&device->device);
-
- return device;
-}
-
-static inline void fw_device_put(struct fw_device *device)
-{
- put_device(&device->device);
-}
-
int fw_device_enable_phys_dma(struct fw_device *device);
/*
struct fw_iso_buffer *buffer,
unsigned long payload);
void fw_iso_context_queue_flush(struct fw_iso_context *ctx);
+int fw_iso_context_flush_completions(struct fw_iso_context *ctx);
int fw_iso_context_start(struct fw_iso_context *ctx,
int cycle, int sync, int tags);
int fw_iso_context_stop(struct fw_iso_context *ctx);
fw_iso_resources_destroy(&isight->resources);
fw_unit_put(isight->unit);
- fw_device_put(isight->device);
mutex_destroy(&isight->mutex);
}
isight->card = card;
mutex_init(&isight->mutex);
isight->unit = fw_unit_get(unit);
- isight->device = fw_device_get(fw_dev);
+ isight->device = fw_dev;
isight->audio_base = get_unit_base(unit);
if (!isight->audio_base) {
dev_err(&unit->device, "audio unit base not found\n");
err_unit:
fw_unit_put(isight->unit);
- fw_device_put(isight->device);
mutex_destroy(&isight->mutex);
error:
snd_card_free(card);
static void fwspk_card_free(struct snd_card *card)
{
struct fwspk *fwspk = card->private_data;
- struct fw_device *dev = fw_parent_device(fwspk->unit);
amdtp_out_stream_destroy(&fwspk->stream);
cmp_connection_destroy(&fwspk->connection);
fw_unit_put(fwspk->unit);
- fw_device_put(dev);
mutex_destroy(&fwspk->mutex);
}
fwspk = card->private_data;
fwspk->card = card;
mutex_init(&fwspk->mutex);
- fw_device_get(fw_dev);
fwspk->unit = fw_unit_get(unit);
fwspk->device_info = fwspk_detect(fw_dev);
if (!fwspk->device_info) {
cmp_connection_destroy(&fwspk->connection);
err_unit:
fw_unit_put(fwspk->unit);
- fw_device_put(fw_dev);
mutex_destroy(&fwspk->mutex);
error:
snd_card_free(card);
projects / karo-tx-linux.git / commitdiff