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IEEE 1394 (FireWire) subsystem changes: 

- fix controller removal when controller is in suspended state
   - fix video reception on VIA VT6306 with gstreamer, MythTV, and maybe dv4l
   - fix a startup issue with Agere/LSI FW643-e2
   - error logging improvements and other small updates
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Merge tag 'firewire-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394

Pull firewure updates from Stefan Richter:
  - fix controller removal when controller is in suspended state
  - fix video reception on VIA VT6306 with gstreamer, MythTV, and maybe dv4l
  - fix a startup issue with Agere/LSI FW643-e2
  - error logging improvements and other small updates

* tag 'firewire-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
  firewire: ohci: dump_stack() for PHY regs read/write failures
  firewire: ohci: Improve bus reset error messages
  firewire: ohci: Alias dev_* log functions
  firewire: ohci: Fix 'failed to read phy reg' on FW643 rev8
  firewire: ohci: fix VIA VT6306 video reception
  firewire: ohci: Check LPS before register access on pci removal
  firewire: ohci: Fix double free_irq()
  firewire: remove unnecessary alloc/OOM messages
  firewire: sbp2: replace BUG_ON by WARN_ON
  firewire: core: remove an always false test
  firewire: Remove two unneeded checks for macros
This commit is contained in:
Linus Torvalds 2013-05-09 10:11:48 -07:00
parent 7462543abb 6fe9efb9c9
commit f78089e87e
5 changed files with 166 additions and 152 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
drivers/firewire/core-cdev.c
View File

@ -389,10 +389,8 @@ static void queue_bus_reset_event(struct client *client)
struct bus_reset_event *e;
e = kzalloc(sizeof(*e), GFP_KERNEL);
if (e == NULL) {
fw_notice(client->device->card, "out of memory when allocating event\n");
if (e == NULL)
return;
}
fill_bus_reset_event(&e->reset, client);
@ -693,10 +691,9 @@ static void handle_request(struct fw_card *card, struct fw_request *request,
r = kmalloc(sizeof(*r), GFP_ATOMIC);
e = kmalloc(sizeof(*e), GFP_ATOMIC);
if (r == NULL || e == NULL) {
fw_notice(card, "out of memory when allocating event\n");
if (r == NULL || e == NULL)
goto failed;
}
r->card = card;
r->request = request;
r->data = payload;
@ -930,10 +927,9 @@ static void iso_callback(struct fw_iso_context *context, u32 cycle,
struct iso_interrupt_event *e;
e = kmalloc(sizeof(*e) + header_length, GFP_ATOMIC);
if (e == NULL) {
fw_notice(context->card, "out of memory when allocating event\n");
if (e == NULL)
return;
}
e->interrupt.type = FW_CDEV_EVENT_ISO_INTERRUPT;
e->interrupt.closure = client->iso_closure;
e->interrupt.cycle = cycle;
@ -950,10 +946,9 @@ static void iso_mc_callback(struct fw_iso_context *context,
struct iso_interrupt_mc_event *e;
e = kmalloc(sizeof(*e), GFP_ATOMIC);
if (e == NULL) {
fw_notice(context->card, "out of memory when allocating event\n");
if (e == NULL)
return;
}
e->interrupt.type = FW_CDEV_EVENT_ISO_INTERRUPT_MULTICHANNEL;
e->interrupt.closure = client->iso_closure;
e->interrupt.completed = fw_iso_buffer_lookup(&client->buffer,
@ -1366,8 +1361,7 @@ static int init_iso_resource(struct client *client,
int ret;
if ((request->channels == 0 && request->bandwidth == 0) ||
request->bandwidth > BANDWIDTH_AVAILABLE_INITIAL ||
request->bandwidth < 0)
request->bandwidth > BANDWIDTH_AVAILABLE_INITIAL)
return -EINVAL;
r = kmalloc(sizeof(*r), GFP_KERNEL);
@ -1582,10 +1576,9 @@ void fw_cdev_handle_phy_packet(struct fw_card *card, struct fw_packet *p)
list_for_each_entry(client, &card->phy_receiver_list, phy_receiver_link) {
e = kmalloc(sizeof(*e) + 8, GFP_ATOMIC);
if (e == NULL) {
fw_notice(card, "out of memory when allocating event\n");
if (e == NULL)
break;
}
e->phy_packet.closure = client->phy_receiver_closure;
e->phy_packet.type = FW_CDEV_EVENT_PHY_PACKET_RECEIVED;
e->phy_packet.rcode = RCODE_COMPLETE;

4
drivers/firewire/core-device.c
View File

@ -692,10 +692,8 @@ static void create_units(struct fw_device *device)
* match the drivers id_tables against it.
*/
unit = kzalloc(sizeof(*unit), GFP_KERNEL);
if (unit == NULL) {
fw_err(device->card, "out of memory for unit\n");
if (unit == NULL)
continue;
}
unit->directory = ci.p + value - 1;
unit->device.bus = &fw_bus_type;

7
drivers/firewire/net.c
View File

@ -356,10 +356,8 @@ static struct fwnet_fragment_info *fwnet_frag_new(
}
new = kmalloc(sizeof(*new), GFP_ATOMIC);
if (!new) {
dev_err(&pd->skb->dev->dev, "out of memory\n");
if (!new)
return NULL;
}
new->offset = offset;
new->len = len;
@ -402,8 +400,6 @@ fail_w_fi:
fail_w_new:
kfree(new);
fail:
dev_err(&net->dev, "out of memory\n");
return NULL;
}
@ -609,7 +605,6 @@ static int fwnet_incoming_packet(struct fwnet_device *dev, __be32 *buf, int len,
skb = dev_alloc_skb(len + LL_RESERVED_SPACE(net));
if (unlikely(!skb)) {
dev_err(&net->dev, "out of memory\n");
net->stats.rx_dropped++;
return -ENOMEM;

270
drivers/firewire/ohci.c
View File

@ -54,6 +54,10 @@
#include "core.h"
#include "ohci.h"
#define ohci_info(ohci, f, args...) dev_info(ohci->card.device, f, ##args)
#define ohci_notice(ohci, f, args...) dev_notice(ohci->card.device, f, ##args)
#define ohci_err(ohci, f, args...) dev_err(ohci->card.device, f, ##args)
#define DESCRIPTOR_OUTPUT_MORE 0
#define DESCRIPTOR_OUTPUT_LAST (1 << 12)
#define DESCRIPTOR_INPUT_MORE (2 << 12)
@ -68,6 +72,8 @@
#define DESCRIPTOR_BRANCH_ALWAYS (3 << 2)
#define DESCRIPTOR_WAIT (3 << 0)
#define DESCRIPTOR_CMD (0xf << 12)
struct descriptor {
__le16 req_count;
__le16 control;
@ -149,10 +155,11 @@ struct context {
struct descriptor *last;
/*
* The last descriptor in the DMA program. It contains the branch
* The last descriptor block in the DMA program. It contains the branch
* address that must be updated upon appending a new descriptor.
*/
struct descriptor *prev;
int prev_z;
descriptor_callback_t callback;
@ -270,7 +277,9 @@ static char ohci_driver_name[] = KBUILD_MODNAME;
#define PCI_DEVICE_ID_TI_TSB12LV22 0x8009
#define PCI_DEVICE_ID_TI_TSB12LV26 0x8020
#define PCI_DEVICE_ID_TI_TSB82AA2 0x8025
#define PCI_DEVICE_ID_VIA_VT630X 0x3044
#define PCI_VENDOR_ID_PINNACLE_SYSTEMS 0x11bd
#define PCI_REV_ID_VIA_VT6306 0x46
#define QUIRK_CYCLE_TIMER 1
#define QUIRK_RESET_PACKET 2
@ -278,6 +287,8 @@ static char ohci_driver_name[] = KBUILD_MODNAME;
#define QUIRK_NO_1394A 8
#define QUIRK_NO_MSI 16
#define QUIRK_TI_SLLZ059 32
#define QUIRK_IR_WAKE 64
#define QUIRK_PHY_LCTRL_TIMEOUT 128
/* In case of multiple matches in ohci_quirks[], only the first one is used. */
static const struct {
@ -290,7 +301,10 @@ static const struct {
QUIRK_BE_HEADERS},
{PCI_VENDOR_ID_ATT, PCI_DEVICE_ID_AGERE_FW643, 6,
QUIRK_NO_MSI},
QUIRK_PHY_LCTRL_TIMEOUT | QUIRK_NO_MSI},
{PCI_VENDOR_ID_ATT, PCI_ANY_ID, PCI_ANY_ID,
QUIRK_PHY_LCTRL_TIMEOUT},
{PCI_VENDOR_ID_CREATIVE, PCI_DEVICE_ID_CREATIVE_SB1394, PCI_ANY_ID,
QUIRK_RESET_PACKET},
@ -319,6 +333,9 @@ static const struct {
{PCI_VENDOR_ID_TI, PCI_ANY_ID, PCI_ANY_ID,
QUIRK_RESET_PACKET},
{PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VT630X, PCI_REV_ID_VIA_VT6306,
QUIRK_CYCLE_TIMER | QUIRK_IR_WAKE},
{PCI_VENDOR_ID_VIA, PCI_ANY_ID, PCI_ANY_ID,
QUIRK_CYCLE_TIMER | QUIRK_NO_MSI},
};
@ -333,6 +350,8 @@ MODULE_PARM_DESC(quirks, "Chip quirks (default = 0"
", no 1394a enhancements = " __stringify(QUIRK_NO_1394A)
", disable MSI = " __stringify(QUIRK_NO_MSI)
", TI SLLZ059 erratum = " __stringify(QUIRK_TI_SLLZ059)
", IR wake unreliable = " __stringify(QUIRK_IR_WAKE)
", phy LCtrl timeout = " __stringify(QUIRK_PHY_LCTRL_TIMEOUT)
")");
#define OHCI_PARAM_DEBUG_AT_AR 1
@ -359,8 +378,7 @@ static void log_irqs(struct fw_ohci *ohci, u32 evt)
!(evt & OHCI1394_busReset))
return;
dev_notice(ohci->card.device,
"IRQ %08x%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s\n", evt,
ohci_notice(ohci, "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" : "",
@ -406,21 +424,19 @@ static void log_selfids(struct fw_ohci *ohci, int generation, int self_id_count)
if (likely(!(param_debug & OHCI_PARAM_DEBUG_SELFIDS)))
return;
dev_notice(ohci->card.device,
"%d selfIDs, generation %d, local node ID %04x\n",
self_id_count, generation, ohci->node_id);
ohci_notice(ohci, "%d selfIDs, generation %d, local node ID %04x\n",
self_id_count, generation, ohci->node_id);
for (s = ohci->self_id_buffer; self_id_count--; ++s)
if ((*s & 1 << 23) == 0)
dev_notice(ohci->card.device,
"selfID 0: %08x, phy %d [%c%c%c] "
"%s gc=%d %s %s%s%s\n",
ohci_notice(ohci,
"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
dev_notice(ohci->card.device,
ohci_notice(ohci,
"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),
@ -470,9 +486,8 @@ static void log_ar_at_event(struct fw_ohci *ohci,
evt = 0x1f;
if (evt == OHCI1394_evt_bus_reset) {
dev_notice(ohci->card.device,
"A%c evt_bus_reset, generation %d\n",
dir, (header[2] >> 16) & 0xff);
ohci_notice(ohci, "A%c evt_bus_reset, generation %d\n",
dir, (header[2] >> 16) & 0xff);
return;
}
@ -491,32 +506,26 @@ static void log_ar_at_event(struct fw_ohci *ohci,
switch (tcode) {
case 0xa:
dev_notice(ohci->card.device,
"A%c %s, %s\n",
dir, evts[evt], tcodes[tcode]);
ohci_notice(ohci, "A%c %s, %s\n",
dir, evts[evt], tcodes[tcode]);
break;
case 0xe:
dev_notice(ohci->card.device,
"A%c %s, PHY %08x %08x\n",
dir, evts[evt], header[1], header[2]);
ohci_notice(ohci, "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:
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);
ohci_notice(ohci,
"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:
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);
ohci_notice(ohci,
"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);
}
}
@ -563,7 +572,8 @@ static int read_phy_reg(struct fw_ohci *ohci, int addr)
if (i >= 3)
msleep(1);
}
dev_err(ohci->card.device, "failed to read phy reg\n");
ohci_err(ohci, "failed to read phy reg %d\n", addr);
dump_stack();
return -EBUSY;
}
@ -585,7 +595,8 @@ static int write_phy_reg(const struct fw_ohci *ohci, int addr, u32 val)
if (i >= 3)
msleep(1);
}
dev_err(ohci->card.device, "failed to write phy reg\n");
ohci_err(ohci, "failed to write phy reg %d, val %u\n", addr, val);
dump_stack();
return -EBUSY;
}
@ -690,8 +701,7 @@ static void ar_context_abort(struct ar_context *ctx, const char *error_msg)
reg_write(ohci, CONTROL_CLEAR(ctx->regs), CONTEXT_RUN);
flush_writes(ohci);
dev_err(ohci->card.device, "AR error: %s; DMA stopped\n",
error_msg);
ohci_err(ohci, "AR error: %s; DMA stopped\n", error_msg);
}
/* FIXME: restart? */
}
@ -1157,6 +1167,7 @@ static int context_init(struct context *ctx, struct fw_ohci *ohci,
ctx->buffer_tail->used += sizeof(*ctx->buffer_tail->buffer);
ctx->last = ctx->buffer_tail->buffer;
ctx->prev = ctx->buffer_tail->buffer;
ctx->prev_z = 1;
return 0;
}
@ -1221,14 +1232,35 @@ static void context_append(struct context *ctx,
{
dma_addr_t d_bus;
struct descriptor_buffer *desc = ctx->buffer_tail;
struct descriptor *d_branch;
d_bus = desc->buffer_bus + (d - desc->buffer) * sizeof(*d);
desc->used += (z + extra) * sizeof(*d);
wmb(); /* finish init of new descriptors before branch_address update */
ctx->prev->branch_address = cpu_to_le32(d_bus | z);
ctx->prev = find_branch_descriptor(d, z);
d_branch = find_branch_descriptor(ctx->prev, ctx->prev_z);
d_branch->branch_address = cpu_to_le32(d_bus | z);
/*
* VT6306 incorrectly checks only the single descriptor at the
* CommandPtr when the wake bit is written, so if it's a
* multi-descriptor block starting with an INPUT_MORE, put a copy of
* the branch address in the first descriptor.
*
* Not doing this for transmit contexts since not sure how it interacts
* with skip addresses.
*/
if (unlikely(ctx->ohci->quirks & QUIRK_IR_WAKE) &&
d_branch != ctx->prev &&
(ctx->prev->control & cpu_to_le16(DESCRIPTOR_CMD)) ==
cpu_to_le16(DESCRIPTOR_INPUT_MORE)) {
ctx->prev->branch_address = cpu_to_le32(d_bus | z);
}
ctx->prev = d;
ctx->prev_z = z;
}
static void context_stop(struct context *ctx)
@ -1248,7 +1280,7 @@ static void context_stop(struct context *ctx)
if (i)
udelay(10);
}
dev_err(ohci->card.device, "DMA context still active (0x%08x)\n", reg);
ohci_err(ohci, "DMA context still active (0x%08x)\n", reg);
}
struct driver_data {
@ -1557,7 +1589,7 @@ static void handle_local_lock(struct fw_ohci *ohci,
goto out;
}
dev_err(ohci->card.device, "swap not done (CSR lock timeout)\n");
ohci_err(ohci, "swap not done (CSR lock timeout)\n");
fw_fill_response(&response, packet->header, RCODE_BUSY, NULL, 0);
out:
@ -1632,8 +1664,7 @@ static void detect_dead_context(struct fw_ohci *ohci,
ctl = reg_read(ohci, CONTROL_SET(regs));
if (ctl & CONTEXT_DEAD)
dev_err(ohci->card.device,
"DMA context %s has stopped, error code: %s\n",
ohci_err(ohci, "DMA context %s has stopped, error code: %s\n",
name, evts[ctl & 0x1f]);
}
@ -1815,8 +1846,8 @@ static int find_and_insert_self_id(struct fw_ohci *ohci, int self_id_count)
reg = reg_read(ohci, OHCI1394_NodeID);
if (!(reg & OHCI1394_NodeID_idValid)) {
dev_notice(ohci->card.device,
"node ID not valid, new bus reset in progress\n");
ohci_notice(ohci,
"node ID not valid, new bus reset in progress\n");
return -EBUSY;
}
self_id |= ((reg & 0x3f) << 24); /* phy ID */
@ -1863,12 +1894,12 @@ static void bus_reset_work(struct work_struct *work)
reg = reg_read(ohci, OHCI1394_NodeID);
if (!(reg & OHCI1394_NodeID_idValid)) {
dev_notice(ohci->card.device,
"node ID not valid, new bus reset in progress\n");
ohci_notice(ohci,
"node ID not valid, new bus reset in progress\n");
return;
}
if ((reg & OHCI1394_NodeID_nodeNumber) == 63) {
dev_notice(ohci->card.device, "malconfigured bus\n");
ohci_notice(ohci, "malconfigured bus\n");
return;
}
ohci->node_id = reg & (OHCI1394_NodeID_busNumber |
@ -1882,7 +1913,7 @@ static void bus_reset_work(struct work_struct *work)
reg = reg_read(ohci, OHCI1394_SelfIDCount);
if (reg & OHCI1394_SelfIDCount_selfIDError) {
dev_notice(ohci->card.device, "inconsistent self IDs\n");
ohci_notice(ohci, "self ID receive error\n");
return;
}
/*
@ -1894,7 +1925,7 @@ static void bus_reset_work(struct work_struct *work)
self_id_count = (reg >> 3) & 0xff;
if (self_id_count > 252) {
dev_notice(ohci->card.device, "inconsistent self IDs\n");
ohci_notice(ohci, "bad selfIDSize (%08x)\n", reg);
return;
}
@ -1902,7 +1933,10 @@ static void bus_reset_work(struct work_struct *work)
rmb();
for (i = 1, j = 0; j < self_id_count; i += 2, j++) {
if (ohci->self_id_cpu[i] != ~ohci->self_id_cpu[i + 1]) {
u32 id = cond_le32_to_cpu(ohci->self_id_cpu[i]);
u32 id2 = cond_le32_to_cpu(ohci->self_id_cpu[i + 1]);
if (id != ~id2) {
/*
* If the invalid data looks like a cycle start packet,
* it's likely to be the result of the cycle master
@ -1910,33 +1944,30 @@ static void bus_reset_work(struct work_struct *work)
* so far are valid and should be processed so that the
* bus manager can then correct the gap count.
*/
if (cond_le32_to_cpu(ohci->self_id_cpu[i])
== 0xffff008f) {
dev_notice(ohci->card.device,
"ignoring spurious self IDs\n");
if (id == 0xffff008f) {
ohci_notice(ohci, "ignoring spurious self IDs\n");
self_id_count = j;
break;
} else {
dev_notice(ohci->card.device,
"inconsistent self IDs\n");
return;
}
ohci_notice(ohci, "bad self ID %d/%d (%08x != ~%08x)\n",
j, self_id_count, id, id2);
return;
}
ohci->self_id_buffer[j] =
cond_le32_to_cpu(ohci->self_id_cpu[i]);
ohci->self_id_buffer[j] = id;
}
if (ohci->quirks & QUIRK_TI_SLLZ059) {
self_id_count = find_and_insert_self_id(ohci, self_id_count);
if (self_id_count < 0) {
dev_notice(ohci->card.device,
"could not construct local self ID\n");
ohci_notice(ohci,
"could not construct local self ID\n");
return;
}
}
if (self_id_count == 0) {
dev_notice(ohci->card.device, "inconsistent self IDs\n");
ohci_notice(ohci, "no self IDs\n");
return;
}
rmb();
@ -1957,8 +1988,7 @@ static void bus_reset_work(struct work_struct *work)
new_generation = (reg_read(ohci, OHCI1394_SelfIDCount) >> 16) & 0xff;
if (new_generation != generation) {
dev_notice(ohci->card.device,
"new bus reset, discarding self ids\n");
ohci_notice(ohci, "new bus reset, discarding self ids\n");
return;
}
@ -2096,7 +2126,7 @@ static irqreturn_t irq_handler(int irq, void *data)
}
if (unlikely(event & OHCI1394_regAccessFail))
dev_err(ohci->card.device, "register access failure\n");
ohci_err(ohci, "register access failure\n");
if (unlikely(event & OHCI1394_postedWriteErr)) {
reg_read(ohci, OHCI1394_PostedWriteAddressHi);
@ -2104,13 +2134,12 @@ static irqreturn_t irq_handler(int irq, void *data)
reg_write(ohci, OHCI1394_IntEventClear,
OHCI1394_postedWriteErr);
if (printk_ratelimit())
dev_err(ohci->card.device, "PCI posted write error\n");
ohci_err(ohci, "PCI posted write error\n");
}
if (unlikely(event & OHCI1394_cycleTooLong)) {
if (printk_ratelimit())
dev_notice(ohci->card.device,
"isochronous cycle too long\n");
ohci_notice(ohci, "isochronous cycle too long\n");
reg_write(ohci, OHCI1394_LinkControlSet,
OHCI1394_LinkControl_cycleMaster);
}
@ -2123,8 +2152,7 @@ static irqreturn_t irq_handler(int irq, void *data)
* them at least two cycles later. (FIXME?)
*/
if (printk_ratelimit())
dev_notice(ohci->card.device,
"isochronous cycle inconsistent\n");
ohci_notice(ohci, "isochronous cycle inconsistent\n");
}
if (unlikely(event & OHCI1394_unrecoverableError))
@ -2246,12 +2274,11 @@ static int ohci_enable(struct fw_card *card,
const __be32 *config_rom, size_t length)
{
struct fw_ohci *ohci = fw_ohci(card);
struct pci_dev *dev = to_pci_dev(card->device);
u32 lps, version, irqs;
int i, ret;
if (software_reset(ohci)) {
dev_err(card->device, "failed to reset ohci card\n");
ohci_err(ohci, "failed to reset ohci card\n");
return -EBUSY;
}
@ -2262,20 +2289,31 @@ static int ohci_enable(struct fw_card *card,
* will lock up the machine. Wait 50msec to make sure we have
* full link enabled. However, with some cards (well, at least
* a JMicron PCIe card), we have to try again sometimes.
*
* TI TSB82AA2 + TSB81BA3(A) cards signal LPS enabled early but
* cannot actually use the phy at that time. These need tens of
* millisecods pause between LPS write and first phy access too.
*
* But do not wait for 50msec on Agere/LSI cards. Their phy
* arbitration state machine may time out during such a long wait.
*/
reg_write(ohci, OHCI1394_HCControlSet,
OHCI1394_HCControl_LPS |
OHCI1394_HCControl_postedWriteEnable);
flush_writes(ohci);
for (lps = 0, i = 0; !lps && i < 3; i++) {
if (!(ohci->quirks & QUIRK_PHY_LCTRL_TIMEOUT))
msleep(50);
for (lps = 0, i = 0; !lps && i < 150; i++) {
msleep(1);
lps = reg_read(ohci, OHCI1394_HCControlSet) &
OHCI1394_HCControl_LPS;
}
if (!lps) {
dev_err(card->device, "failed to set Link Power Status\n");
ohci_err(ohci, "failed to set Link Power Status\n");
return -EIO;
}
@ -2284,7 +2322,7 @@ static int ohci_enable(struct fw_card *card,
if (ret < 0)
return ret;
if (ret)
dev_notice(card->device, "local TSB41BA3D phy\n");
ohci_notice(ohci, "local TSB41BA3D phy\n");
else
ohci->quirks &= ~QUIRK_TI_SLLZ059;
}
@ -2382,24 +2420,6 @@ static int ohci_enable(struct fw_card *card,
reg_write(ohci, OHCI1394_AsReqFilterHiSet, 0x80000000);
if (!(ohci->quirks & QUIRK_NO_MSI))
pci_enable_msi(dev);
if (request_irq(dev->irq, irq_handler,
pci_dev_msi_enabled(dev) ? 0 : IRQF_SHARED,
ohci_driver_name, ohci)) {
dev_err(card->device, "failed to allocate interrupt %d\n",
dev->irq);
pci_disable_msi(dev);
if (config_rom) {
dma_free_coherent(ohci->card.device, CONFIG_ROM_SIZE,
ohci->next_config_rom,
ohci->next_config_rom_bus);
ohci->next_config_rom = NULL;
}
return -EIO;
}
irqs = OHCI1394_reqTxComplete | OHCI1394_respTxComplete |
OHCI1394_RQPkt | OHCI1394_RSPkt |
OHCI1394_isochTx | OHCI1394_isochRx |
@ -3578,20 +3598,20 @@ static int pci_probe(struct pci_dev *dev,
if (!(pci_resource_flags(dev, 0) & IORESOURCE_MEM) ||
pci_resource_len(dev, 0) < OHCI1394_REGISTER_SIZE) {
dev_err(&dev->dev, "invalid MMIO resource\n");
ohci_err(ohci, "invalid MMIO resource\n");
err = -ENXIO;
goto fail_disable;
}
err = pci_request_region(dev, 0, ohci_driver_name);
if (err) {
dev_err(&dev->dev, "MMIO resource unavailable\n");
ohci_err(ohci, "MMIO resource unavailable\n");
goto fail_disable;
}
ohci->registers = pci_iomap(dev, 0, OHCI1394_REGISTER_SIZE);
if (ohci->registers == NULL) {
dev_err(&dev->dev, "failed to remap registers\n");
ohci_err(ohci, "failed to remap registers\n");
err = -ENXIO;
goto fail_iomem;
}
@ -3675,19 +3695,33 @@ static int pci_probe(struct pci_dev *dev,
guid = ((u64) reg_read(ohci, OHCI1394_GUIDHi) << 32) |
reg_read(ohci, OHCI1394_GUIDLo);
if (!(ohci->quirks & QUIRK_NO_MSI))
pci_enable_msi(dev);
if (request_irq(dev->irq, irq_handler,
pci_dev_msi_enabled(dev) ? 0 : IRQF_SHARED,
ohci_driver_name, ohci)) {
ohci_err(ohci, "failed to allocate interrupt %d\n", dev->irq);
err = -EIO;
goto fail_msi;
}
err = fw_card_add(&ohci->card, max_receive, link_speed, guid);
if (err)
goto fail_contexts;
goto fail_irq;
version = reg_read(ohci, OHCI1394_Version) & 0x00ff00ff;
dev_notice(&dev->dev,
"added OHCI v%x.%x device as card %d, "
"%d IR + %d IT contexts, quirks 0x%x\n",
version >> 16, version & 0xff, ohci->card.index,
ohci->n_ir, ohci->n_it, ohci->quirks);
ohci_notice(ohci,
"added OHCI v%x.%x device as card %d, "
"%d IR + %d IT contexts, quirks 0x%x\n",
version >> 16, version & 0xff, ohci->card.index,
ohci->n_ir, ohci->n_it, ohci->quirks);
return 0;
fail_irq:
free_irq(dev->irq, ohci);
fail_msi:
pci_disable_msi(dev);
fail_contexts:
kfree(ohci->ir_context_list);
kfree(ohci->it_context_list);
@ -3711,19 +3745,21 @@ static int pci_probe(struct pci_dev *dev,
kfree(ohci);
pmac_ohci_off(dev);
fail:
if (err == -ENOMEM)
dev_err(&dev->dev, "out of memory\n");
return err;
}
static void pci_remove(struct pci_dev *dev)
{
struct fw_ohci *ohci;
struct fw_ohci *ohci = pci_get_drvdata(dev);
ohci = pci_get_drvdata(dev);
reg_write(ohci, OHCI1394_IntMaskClear, ~0);
flush_writes(ohci);
/*
* If the removal is happening from the suspend state, LPS won't be
* enabled and host registers (eg., IntMaskClear) won't be accessible.
*/
if (reg_read(ohci, OHCI1394_HCControlSet) & OHCI1394_HCControl_LPS) {
reg_write(ohci, OHCI1394_IntMaskClear, ~0);
flush_writes(ohci);
}
cancel_work_sync(&ohci->bus_reset_work);
fw_core_remove_card(&ohci->card);
@ -3766,16 +3802,14 @@ static int pci_suspend(struct pci_dev *dev, pm_message_t state)
int err;
software_reset(ohci);
free_irq(dev->irq, ohci);
pci_disable_msi(dev);
err = pci_save_state(dev);
if (err) {
dev_err(&dev->dev, "pci_save_state failed\n");
ohci_err(ohci, "pci_save_state failed\n");
return err;
}
err = pci_set_power_state(dev, pci_choose_state(dev, state));
if (err)
dev_err(&dev->dev, "pci_set_power_state failed with %d\n", err);
ohci_err(ohci, "pci_set_power_state failed with %d\n", err);
pmac_ohci_off(dev);
return 0;
@ -3791,7 +3825,7 @@ static int pci_resume(struct pci_dev *dev)
pci_restore_state(dev);
err = pci_enable_device(dev);
if (err) {
dev_err(&dev->dev, "pci_enable_device failed\n");
ohci_err(ohci, "pci_enable_device failed\n");
return err;
}
@ -3837,6 +3871,4 @@ MODULE_DESCRIPTION("Driver for PCI OHCI IEEE1394 controllers");
MODULE_LICENSE("GPL");
/* Provide a module alias so root-on-sbp2 initrds don't break. */
#ifndef CONFIG_IEEE1394_OHCI1394_MODULE
MODULE_ALIAS("ohci1394");
#endif

10
drivers/firewire/sbp2.c
View File

@ -1144,8 +1144,8 @@ static int sbp2_probe(struct device *dev)
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));
WARN_ON(dma_set_max_seg_size(device->card->device,
SBP2_MAX_SEG_SIZE));
shost = scsi_host_alloc(&scsi_driver_template, sizeof(*tgt));
if (shost == NULL)
@ -1475,10 +1475,8 @@ static int sbp2_scsi_queuecommand(struct Scsi_Host *shost,
}
orb = kzalloc(sizeof(*orb), GFP_ATOMIC);
if (orb == NULL) {
dev_notice(lu_dev(lu), "failed to alloc ORB\n");
if (orb == NULL)
return SCSI_MLQUEUE_HOST_BUSY;
}
/* Initialize rcode to something not RCODE_COMPLETE. */
orb->base.rcode = -1;
@ -1636,9 +1634,7 @@ MODULE_LICENSE("GPL");
MODULE_DEVICE_TABLE(ieee1394, sbp2_id_table);
/* Provide a module alias so root-on-sbp2 initrds don't break. */
#ifndef CONFIG_IEEE1394_SBP2_MODULE
MODULE_ALIAS("sbp2");
#endif
static int __init sbp2_init(void)
{