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-rw-r--r--drivers/acpi/acpica/hwvalid.c1
-rw-r--r--drivers/acpi/battery.c2
-rw-r--r--drivers/acpi/proc.c13
-rw-r--r--drivers/acpi/processor_idle.c3
-rw-r--r--drivers/acpi/scan.c31
-rw-r--r--drivers/acpi/sleep.h3
-rw-r--r--drivers/acpi/thermal.c68
-rw-r--r--drivers/acpi/video.c30
-rw-r--r--drivers/acpi/wakeup.c30
-rw-r--r--drivers/md/dm-ioctl.c21
-rw-r--r--drivers/md/dm-kcopyd.c23
-rw-r--r--drivers/md/dm-linear.c1
-rw-r--r--drivers/md/dm-table.c59
-rw-r--r--drivers/md/dm.c199
-rw-r--r--drivers/md/dm.h1
-rw-r--r--drivers/mmc/core/mmc.c2
-rw-r--r--drivers/mmc/core/sd.c21
-rw-r--r--drivers/mmc/host/imxmmc.c19
-rw-r--r--drivers/mmc/host/mmc_spi.c188
-rw-r--r--drivers/mmc/host/omap_hsmmc.c7
-rw-r--r--drivers/mmc/host/sdhci-pci.c2
-rw-r--r--drivers/mmc/host/sdhci.c2
-rw-r--r--drivers/mmc/host/wbsd.c2
-rw-r--r--drivers/net/Kconfig23
-rw-r--r--drivers/net/Makefile1
-rw-r--r--drivers/net/bnx2.c26
-rw-r--r--drivers/net/eql.c2
-rw-r--r--drivers/net/fec.c1
-rw-r--r--drivers/net/igb/igb_main.c159
-rw-r--r--drivers/net/igbvf/Makefile38
-rw-r--r--drivers/net/igbvf/defines.h125
-rw-r--r--drivers/net/igbvf/ethtool.c540
-rw-r--r--drivers/net/igbvf/igbvf.h335
-rw-r--r--drivers/net/igbvf/mbx.c350
-rw-r--r--drivers/net/igbvf/mbx.h75
-rw-r--r--drivers/net/igbvf/netdev.c2919
-rw-r--r--drivers/net/igbvf/regs.h108
-rw-r--r--drivers/net/igbvf/vf.c398
-rw-r--r--drivers/net/igbvf/vf.h265
-rw-r--r--drivers/net/mv643xx_eth.c4
-rw-r--r--drivers/net/niu.c3
-rw-r--r--drivers/net/r6040.c1
-rw-r--r--drivers/net/smsc911x.c2
-rw-r--r--drivers/platform/x86/fujitsu-laptop.c60
-rw-r--r--drivers/platform/x86/panasonic-laptop.c28
-rw-r--r--drivers/platform/x86/sony-laptop.c30
-rw-r--r--drivers/platform/x86/wmi.c15
-rw-r--r--drivers/power/pcf50633-charger.c88
-rw-r--r--drivers/power/pda_power.c89
-rw-r--r--drivers/serial/max3100.c927
-rw-r--r--drivers/serial/sunsu.c2
-rw-r--r--drivers/usb/host/ohci-at91.c4
52 files changed, 6804 insertions, 542 deletions
diff --git a/drivers/acpi/acpica/hwvalid.c b/drivers/acpi/acpica/hwvalid.c
index bd3c937b0ac..7737afb157c 100644
--- a/drivers/acpi/acpica/hwvalid.c
+++ b/drivers/acpi/acpica/hwvalid.c
@@ -90,7 +90,6 @@ static const struct acpi_port_info acpi_protected_ports[] = {
{"PIT2", 0x0048, 0x004B, ACPI_OSI_WIN_XP},
{"RTC", 0x0070, 0x0071, ACPI_OSI_WIN_XP},
{"CMOS", 0x0074, 0x0076, ACPI_OSI_WIN_XP},
- {"DMA1", 0x0081, 0x0083, ACPI_OSI_WIN_XP},
{"DMA1L", 0x0087, 0x0087, ACPI_OSI_WIN_XP},
{"DMA2", 0x0089, 0x008B, ACPI_OSI_WIN_XP},
{"DMA2L", 0x008F, 0x008F, ACPI_OSI_WIN_XP},
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index b0de6312919..3c7d8942f23 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -903,7 +903,7 @@ static struct acpi_driver acpi_battery_driver = {
},
};
-static void __init acpi_battery_init_async(void *unused, async_cookie_t cookie)
+static void acpi_battery_init_async(void *unused, async_cookie_t cookie)
{
if (acpi_disabled)
return;
diff --git a/drivers/acpi/proc.c b/drivers/acpi/proc.c
index 05dfdc96802..d0d550d22a6 100644
--- a/drivers/acpi/proc.c
+++ b/drivers/acpi/proc.c
@@ -343,9 +343,6 @@ acpi_system_write_alarm(struct file *file,
}
#endif /* HAVE_ACPI_LEGACY_ALARM */
-extern struct list_head acpi_wakeup_device_list;
-extern spinlock_t acpi_device_lock;
-
static int
acpi_system_wakeup_device_seq_show(struct seq_file *seq, void *offset)
{
@@ -353,7 +350,7 @@ acpi_system_wakeup_device_seq_show(struct seq_file *seq, void *offset)
seq_printf(seq, "Device\tS-state\t Status Sysfs node\n");
- spin_lock(&acpi_device_lock);
+ mutex_lock(&acpi_device_lock);
list_for_each_safe(node, next, &acpi_wakeup_device_list) {
struct acpi_device *dev =
container_of(node, struct acpi_device, wakeup_list);
@@ -361,7 +358,6 @@ acpi_system_wakeup_device_seq_show(struct seq_file *seq, void *offset)
if (!dev->wakeup.flags.valid)
continue;
- spin_unlock(&acpi_device_lock);
ldev = acpi_get_physical_device(dev->handle);
seq_printf(seq, "%s\t S%d\t%c%-8s ",
@@ -376,9 +372,8 @@ acpi_system_wakeup_device_seq_show(struct seq_file *seq, void *offset)
seq_printf(seq, "\n");
put_device(ldev);
- spin_lock(&acpi_device_lock);
}
- spin_unlock(&acpi_device_lock);
+ mutex_unlock(&acpi_device_lock);
return 0;
}
@@ -409,7 +404,7 @@ acpi_system_write_wakeup_device(struct file *file,
strbuf[len] = '\0';
sscanf(strbuf, "%s", str);
- spin_lock(&acpi_device_lock);
+ mutex_lock(&acpi_device_lock);
list_for_each_safe(node, next, &acpi_wakeup_device_list) {
struct acpi_device *dev =
container_of(node, struct acpi_device, wakeup_list);
@@ -446,7 +441,7 @@ acpi_system_write_wakeup_device(struct file *file,
}
}
}
- spin_unlock(&acpi_device_lock);
+ mutex_unlock(&acpi_device_lock);
return count;
}
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 4e6e758bd39..6fe121434ff 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -145,6 +145,9 @@ static void acpi_timer_check_state(int state, struct acpi_processor *pr,
struct acpi_processor_power *pwr = &pr->power;
u8 type = local_apic_timer_c2_ok ? ACPI_STATE_C3 : ACPI_STATE_C2;
+ if (cpu_has(&cpu_data(pr->id), X86_FEATURE_ARAT))
+ return;
+
/*
* Check, if one of the previous states already marked the lapic
* unstable
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 20c23c04920..8ff510b91d8 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -24,7 +24,7 @@ extern struct acpi_device *acpi_root;
static LIST_HEAD(acpi_device_list);
static LIST_HEAD(acpi_bus_id_list);
-DEFINE_SPINLOCK(acpi_device_lock);
+DEFINE_MUTEX(acpi_device_lock);
LIST_HEAD(acpi_wakeup_device_list);
struct acpi_device_bus_id{
@@ -491,7 +491,6 @@ static int acpi_device_register(struct acpi_device *device,
*/
INIT_LIST_HEAD(&device->children);
INIT_LIST_HEAD(&device->node);
- INIT_LIST_HEAD(&device->g_list);
INIT_LIST_HEAD(&device->wakeup_list);
new_bus_id = kzalloc(sizeof(struct acpi_device_bus_id), GFP_KERNEL);
@@ -500,7 +499,7 @@ static int acpi_device_register(struct acpi_device *device,
return -ENOMEM;
}
- spin_lock(&acpi_device_lock);
+ mutex_lock(&acpi_device_lock);
/*
* Find suitable bus_id and instance number in acpi_bus_id_list
* If failed, create one and link it into acpi_bus_id_list
@@ -521,14 +520,12 @@ static int acpi_device_register(struct acpi_device *device,
}
dev_set_name(&device->dev, "%s:%02x", acpi_device_bus_id->bus_id, acpi_device_bus_id->instance_no);
- if (device->parent) {
+ if (device->parent)
list_add_tail(&device->node, &device->parent->children);
- list_add_tail(&device->g_list, &device->parent->g_list);
- } else
- list_add_tail(&device->g_list, &acpi_device_list);
+
if (device->wakeup.flags.valid)
list_add_tail(&device->wakeup_list, &acpi_wakeup_device_list);
- spin_unlock(&acpi_device_lock);
+ mutex_unlock(&acpi_device_lock);
if (device->parent)
device->dev.parent = &parent->dev;
@@ -549,28 +546,22 @@ static int acpi_device_register(struct acpi_device *device,
device->removal_type = ACPI_BUS_REMOVAL_NORMAL;
return 0;
end:
- spin_lock(&acpi_device_lock);
- if (device->parent) {
+ mutex_lock(&acpi_device_lock);
+ if (device->parent)
list_del(&device->node);
- list_del(&device->g_list);
- } else
- list_del(&device->g_list);
list_del(&device->wakeup_list);
- spin_unlock(&acpi_device_lock);
+ mutex_unlock(&acpi_device_lock);
return result;
}
static void acpi_device_unregister(struct acpi_device *device, int type)
{
- spin_lock(&acpi_device_lock);
- if (device->parent) {
+ mutex_lock(&acpi_device_lock);
+ if (device->parent)
list_del(&device->node);
- list_del(&device->g_list);
- } else
- list_del(&device->g_list);
list_del(&device->wakeup_list);
- spin_unlock(&acpi_device_lock);
+ mutex_unlock(&acpi_device_lock);
acpi_detach_data(device->handle, acpi_bus_data_handler);
diff --git a/drivers/acpi/sleep.h b/drivers/acpi/sleep.h
index cfaf8f5b0a1..8a8f3b3382a 100644
--- a/drivers/acpi/sleep.h
+++ b/drivers/acpi/sleep.h
@@ -5,3 +5,6 @@ extern int acpi_suspend (u32 state);
extern void acpi_enable_wakeup_device_prep(u8 sleep_state);
extern void acpi_enable_wakeup_device(u8 sleep_state);
extern void acpi_disable_wakeup_device(u8 sleep_state);
+
+extern struct list_head acpi_wakeup_device_list;
+extern struct mutex acpi_device_lock;
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index e8c143caf0f..9cd15e8c893 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -98,6 +98,7 @@ MODULE_PARM_DESC(psv, "Disable or override all passive trip points.");
static int acpi_thermal_add(struct acpi_device *device);
static int acpi_thermal_remove(struct acpi_device *device, int type);
static int acpi_thermal_resume(struct acpi_device *device);
+static void acpi_thermal_notify(struct acpi_device *device, u32 event);
static int acpi_thermal_state_open_fs(struct inode *inode, struct file *file);
static int acpi_thermal_temp_open_fs(struct inode *inode, struct file *file);
static int acpi_thermal_trip_open_fs(struct inode *inode, struct file *file);
@@ -123,6 +124,7 @@ static struct acpi_driver acpi_thermal_driver = {
.add = acpi_thermal_add,
.remove = acpi_thermal_remove,
.resume = acpi_thermal_resume,
+ .notify = acpi_thermal_notify,
},
};
@@ -192,6 +194,7 @@ struct acpi_thermal {
struct acpi_handle_list devices;
struct thermal_zone_device *thermal_zone;
int tz_enabled;
+ int kelvin_offset;
struct mutex lock;
};
@@ -581,7 +584,7 @@ static void acpi_thermal_check(void *data)
}
/* sys I/F for generic thermal sysfs support */
-#define KELVIN_TO_MILLICELSIUS(t) (t * 100 - 273200)
+#define KELVIN_TO_MILLICELSIUS(t, off) (((t) - (off)) * 100)
static int thermal_get_temp(struct thermal_zone_device *thermal,
unsigned long *temp)
@@ -596,7 +599,7 @@ static int thermal_get_temp(struct thermal_zone_device *thermal,
if (result)
return result;
- *temp = KELVIN_TO_MILLICELSIUS(tz->temperature);
+ *temp = KELVIN_TO_MILLICELSIUS(tz->temperature, tz->kelvin_offset);
return 0;
}
@@ -702,7 +705,8 @@ static int thermal_get_trip_temp(struct thermal_zone_device *thermal,
if (tz->trips.critical.flags.valid) {
if (!trip) {
*temp = KELVIN_TO_MILLICELSIUS(
- tz->trips.critical.temperature);
+ tz->trips.critical.temperature,
+ tz->kelvin_offset);
return 0;
}
trip--;
@@ -711,7 +715,8 @@ static int thermal_get_trip_temp(struct thermal_zone_device *thermal,
if (tz->trips.hot.flags.valid) {
if (!trip) {
*temp = KELVIN_TO_MILLICELSIUS(
- tz->trips.hot.temperature);
+ tz->trips.hot.temperature,
+ tz->kelvin_offset);
return 0;
}
trip--;
@@ -720,7 +725,8 @@ static int thermal_get_trip_temp(struct thermal_zone_device *thermal,
if (tz->trips.passive.flags.valid) {
if (!trip) {
*temp = KELVIN_TO_MILLICELSIUS(
- tz->trips.passive.temperature);
+ tz->trips.passive.temperature,
+ tz->kelvin_offset);
return 0;
}
trip--;
@@ -730,7 +736,8 @@ static int thermal_get_trip_temp(struct thermal_zone_device *thermal,
tz->trips.active[i].flags.valid; i++) {
if (!trip) {
*temp = KELVIN_TO_MILLICELSIUS(
- tz->trips.active[i].temperature);
+ tz->trips.active[i].temperature,
+ tz->kelvin_offset);
return 0;
}
trip--;
@@ -745,7 +752,8 @@ static int thermal_get_crit_temp(struct thermal_zone_device *thermal,
if (tz->trips.critical.flags.valid) {
*temperature = KELVIN_TO_MILLICELSIUS(
- tz->trips.critical.temperature);
+ tz->trips.critical.temperature,
+ tz->kelvin_offset);
return 0;
} else
return -EINVAL;
@@ -1264,17 +1272,14 @@ static int acpi_thermal_remove_fs(struct acpi_device *device)
Driver Interface
-------------------------------------------------------------------------- */
-static void acpi_thermal_notify(acpi_handle handle, u32 event, void *data)
+static void acpi_thermal_notify(struct acpi_device *device, u32 event)
{
- struct acpi_thermal *tz = data;
- struct acpi_device *device = NULL;
+ struct acpi_thermal *tz = acpi_driver_data(device);
if (!tz)
return;
- device = tz->device;
-
switch (event) {
case ACPI_THERMAL_NOTIFY_TEMPERATURE:
acpi_thermal_check(tz);
@@ -1298,8 +1303,6 @@ static void acpi_thermal_notify(acpi_handle handle, u32 event, void *data)
"Unsupported event [0x%x]\n", event));
break;
}
-
- return;
}
static int acpi_thermal_get_info(struct acpi_thermal *tz)
@@ -1334,10 +1337,28 @@ static int acpi_thermal_get_info(struct acpi_thermal *tz)
return 0;
}
+/*
+ * The exact offset between Kelvin and degree Celsius is 273.15. However ACPI
+ * handles temperature values with a single decimal place. As a consequence,
+ * some implementations use an offset of 273.1 and others use an offset of
+ * 273.2. Try to find out which one is being used, to present the most
+ * accurate and visually appealing number.
+ *
+ * The heuristic below should work for all ACPI thermal zones which have a
+ * critical trip point with a value being a multiple of 0.5 degree Celsius.
+ */
+static void acpi_thermal_guess_offset(struct acpi_thermal *tz)
+{
+ if (tz->trips.critical.flags.valid &&
+ (tz->trips.critical.temperature % 5) == 1)
+ tz->kelvin_offset = 2731;
+ else
+ tz->kelvin_offset = 2732;
+}
+
static int acpi_thermal_add(struct acpi_device *device)
{
int result = 0;
- acpi_status status = AE_OK;
struct acpi_thermal *tz = NULL;
@@ -1360,6 +1381,8 @@ static int acpi_thermal_add(struct acpi_device *device)
if (result)
goto free_memory;
+ acpi_thermal_guess_offset(tz);
+
result = acpi_thermal_register_thermal_zone(tz);
if (result)
goto free_memory;
@@ -1368,21 +1391,11 @@ static int acpi_thermal_add(struct acpi_device *device)
if (result)
goto unregister_thermal_zone;
- status = acpi_install_notify_handler(device->handle,
- ACPI_DEVICE_NOTIFY,
- acpi_thermal_notify, tz);
- if (ACPI_FAILURE(status)) {
- result = -ENODEV;
- goto remove_fs;
- }
-
printk(KERN_INFO PREFIX "%s [%s] (%ld C)\n",
acpi_device_name(device), acpi_device_bid(device),
KELVIN_TO_CELSIUS(tz->temperature));
goto end;
-remove_fs:
- acpi_thermal_remove_fs(device);
unregister_thermal_zone:
thermal_zone_device_unregister(tz->thermal_zone);
free_memory:
@@ -1393,7 +1406,6 @@ end:
static int acpi_thermal_remove(struct acpi_device *device, int type)
{
- acpi_status status = AE_OK;
struct acpi_thermal *tz = NULL;
if (!device || !acpi_driver_data(device))
@@ -1401,10 +1413,6 @@ static int acpi_thermal_remove(struct acpi_device *device, int type)
tz = acpi_driver_data(device);
- status = acpi_remove_notify_handler(device->handle,
- ACPI_DEVICE_NOTIFY,
- acpi_thermal_notify);
-
acpi_thermal_remove_fs(device);
acpi_thermal_unregister_thermal_zone(tz);
mutex_destroy(&tz->lock);
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index ab06143672b..cd4fb7543a9 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -79,6 +79,7 @@ module_param(brightness_switch_enabled, bool, 0644);
static int acpi_video_bus_add(struct acpi_device *device);
static int acpi_video_bus_remove(struct acpi_device *device, int type);
static int acpi_video_resume(struct acpi_device *device);
+static void acpi_video_bus_notify(struct acpi_device *device, u32 event);
static const struct acpi_device_id video_device_ids[] = {
{ACPI_VIDEO_HID, 0},
@@ -94,6 +95,7 @@ static struct acpi_driver acpi_video_bus = {
.add = acpi_video_bus_add,
.remove = acpi_video_bus_remove,
.resume = acpi_video_resume,
+ .notify = acpi_video_bus_notify,
},
};
@@ -1986,17 +1988,15 @@ static int acpi_video_bus_stop_devices(struct acpi_video_bus *video)
return acpi_video_bus_DOS(video, 0, 1);
}
-static void acpi_video_bus_notify(acpi_handle handle, u32 event, void *data)
+static void acpi_video_bus_notify(struct acpi_device *device, u32 event)
{
- struct acpi_video_bus *video = data;
- struct acpi_device *device = NULL;
+ struct acpi_video_bus *video = acpi_driver_data(device);
struct input_dev *input;
int keycode;
if (!video)
return;
- device = video->device;
input = video->input;
switch (event) {
@@ -2127,7 +2127,6 @@ static int acpi_video_resume(struct acpi_device *device)
static int acpi_video_bus_add(struct acpi_device *device)
{
- acpi_status status;
struct acpi_video_bus *video;
struct input_dev *input;
int error;
@@ -2169,20 +2168,10 @@ static int acpi_video_bus_add(struct acpi_device *device)
acpi_video_bus_get_devices(video, device);
acpi_video_bus_start_devices(video);
- status = acpi_install_notify_handler(device->handle,
- ACPI_DEVICE_NOTIFY,
- acpi_video_bus_notify, video);
- if (ACPI_FAILURE(status)) {
- printk(KERN_ERR PREFIX
- "Error installing notify handler\n");
- error = -ENODEV;
- goto err_stop_video;
- }
-
video->input = input = input_allocate_device();
if (!input) {
error = -ENOMEM;
- goto err_uninstall_notify;
+ goto err_stop_video;
}
snprintf(video->phys, sizeof(video->phys),
@@ -2218,9 +2207,6 @@ static int acpi_video_bus_add(struct acpi_device *device)
err_free_input_dev:
input_free_device(input);
- err_uninstall_notify:
- acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY,
- acpi_video_bus_notify);
err_stop_video:
acpi_video_bus_stop_devices(video);
acpi_video_bus_put_devices(video);
@@ -2235,7 +2221,6 @@ static int acpi_video_bus_add(struct acpi_device *device)
static int acpi_video_bus_remove(struct acpi_device *device, int type)
{
- acpi_status status = 0;
struct acpi_video_bus *video = NULL;
@@ -2245,11 +2230,6 @@ static int acpi_video_bus_remove(struct acpi_device *device, int type)
video = acpi_driver_data(device);
acpi_video_bus_stop_devices(video);
-
- status = acpi_remove_notify_handler(video->device->handle,
- ACPI_DEVICE_NOTIFY,
- acpi_video_bus_notify);
-
acpi_video_bus_put_devices(video);
acpi_video_bus_remove_fs(device);
diff --git a/drivers/acpi/wakeup.c b/drivers/acpi/wakeup.c
index 5aee8c26cc9..88725dcdf8b 100644
--- a/drivers/acpi/wakeup.c
+++ b/drivers/acpi/wakeup.c
@@ -12,12 +12,14 @@
#include "internal.h"
#include "sleep.h"
+/*
+ * We didn't lock acpi_device_lock in the file, because it invokes oops in
+ * suspend/resume and isn't really required as this is called in S-state. At
+ * that time, there is no device hotplug
+ **/
#define _COMPONENT ACPI_SYSTEM_COMPONENT
ACPI_MODULE_NAME("wakeup_devices")
-extern struct list_head acpi_wakeup_device_list;
-extern spinlock_t acpi_device_lock;
-
/**
* acpi_enable_wakeup_device_prep - prepare wakeup devices
* @sleep_state: ACPI state
@@ -29,7 +31,6 @@ void acpi_enable_wakeup_device_prep(u8 sleep_state)
{
struct list_head *node, *next;
- spin_lock(&acpi_device_lock);
list_for_each_safe(node, next, &acpi_wakeup_device_list) {
struct acpi_device *dev = container_of(node,
struct acpi_device,
@@ -40,11 +41,8 @@ void acpi_enable_wakeup_device_prep(u8 sleep_state)
(sleep_state > (u32) dev->wakeup.sleep_state))
continue;
- spin_unlock(&acpi_device_lock);
acpi_enable_wakeup_device_power(dev, sleep_state);
- spin_lock(&acpi_device_lock);
}
- spin_unlock(&acpi_device_lock);
}
/**
@@ -60,7 +58,6 @@ void acpi_enable_wakeup_device(u8 sleep_state)
* Caution: this routine must be invoked when interrupt is disabled
* Refer ACPI2.0: P212
*/
- spin_lock(&acpi_device_lock);
list_for_each_safe(node, next, &acpi_wakeup_device_list) {
struct acpi_device *dev =
container_of(node, struct acpi_device, wakeup_list);
@@ -74,22 +71,17 @@ void acpi_enable_wakeup_device(u8 sleep_state)
if ((!dev->wakeup.state.enabled && !dev->wakeup.flags.prepared)
|| sleep_state > (u32) dev->wakeup.sleep_state) {
if (dev->wakeup.flags.run_wake) {
- spin_unlock(&acpi_device_lock);
/* set_gpe_type will disable GPE, leave it like that */
acpi_set_gpe_type(dev->wakeup.gpe_device,
dev->wakeup.gpe_number,
ACPI_GPE_TYPE_RUNTIME);
- spin_lock(&acpi_device_lock);
}
continue;
}
- spin_unlock(&acpi_device_lock);
if (!dev->wakeup.flags.run_wake)
acpi_enable_gpe(dev->wakeup.gpe_device,
dev->wakeup.gpe_number);
- spin_lock(&acpi_device_lock);
}
- spin_unlock(&acpi_device_lock);
}
/**
@@ -101,7 +93,6 @@ void acpi_disable_wakeup_device(u8 sleep_state)
{
struct list_head *node, *next;
- spin_lock(&acpi_device_lock);
list_for_each_safe(node, next, &acpi_wakeup_device_list) {
struct acpi_device *dev =
container_of(node, struct acpi_device, wakeup_list);
@@ -112,19 +103,16 @@ void acpi_disable_wakeup_device(u8 sleep_state)
if ((!dev->wakeup.state.enabled && !dev->wakeup.flags.prepared)
|| sleep_state > (u32) dev->wakeup.sleep_state) {
if (dev->wakeup.flags.run_wake) {
- spin_unlock(&acpi_device_lock);
acpi_set_gpe_type(dev->wakeup.gpe_device,
dev->wakeup.gpe_number,
ACPI_GPE_TYPE_WAKE_RUN);
/* Re-enable it, since set_gpe_type will disable it */
acpi_enable_gpe(dev->wakeup.gpe_device,
dev->wakeup.gpe_number);
- spin_lock(&acpi_device_lock);
}
continue;
}
- spin_unlock(&acpi_device_lock);
acpi_disable_wakeup_device_power(dev);
/* Never disable run-wake GPE */
if (!dev->wakeup.flags.run_wake) {
@@ -133,16 +121,14 @@ void acpi_disable_wakeup_device(u8 sleep_state)
acpi_clear_gpe(dev->wakeup.gpe_device,
dev->wakeup.gpe_number, ACPI_NOT_ISR);
}
- spin_lock(&acpi_device_lock);
}
- spin_unlock(&acpi_device_lock);
}
int __init acpi_wakeup_device_init(void)
{
struct list_head *node, *next;
- spin_lock(&acpi_device_lock);
+ mutex_lock(&acpi_device_lock);
list_for_each_safe(node, next, &acpi_wakeup_device_list) {
struct acpi_device *dev = container_of(node,
struct acpi_device,
@@ -150,15 +136,13 @@ int __init acpi_wakeup_device_init(void)
/* In case user doesn't load button driver */
if (!dev->wakeup.flags.run_wake || dev->wakeup.state.enabled)
continue;
- spin_unlock(&acpi_device_lock);
acpi_set_gpe_type(dev->wakeup.gpe_device,
dev->wakeup.gpe_number,
ACPI_GPE_TYPE_WAKE_RUN);
acpi_enable_gpe(dev->wakeup.gpe_device,
dev->wakeup.gpe_number);
dev->wakeup.state.enabled = 1;
- spin_lock(&acpi_device_lock);
}
- spin_unlock(&acpi_device_lock);
+ mutex_unlock(&acpi_device_lock);
return 0;
}
diff --git a/drivers/md/dm-ioctl.c b/drivers/md/dm-ioctl.c
index f01096549a9..823ceba6efa 100644
--- a/drivers/md/dm-ioctl.c
+++ b/drivers/md/dm-ioctl.c
@@ -1047,6 +1047,19 @@ static int populate_table(struct dm_table *table,
return dm_table_complete(table);
}
+static int table_prealloc_integrity(struct dm_table *t,
+ struct mapped_device *md)
+{
+ struct list_head *devices = dm_table_get_devices(t);
+ struct dm_dev_internal *dd;
+
+ list_for_each_entry(dd, devices, list)
+ if (bdev_get_integrity(dd->dm_dev.bdev))
+ return blk_integrity_register(dm_disk(md), NULL);
+
+ return 0;
+}
+
static int table_load(struct dm_ioctl *param, size_t param_size)
{
int r;
@@ -1068,6 +1081,14 @@ static int table_load(struct dm_ioctl *param, size_t param_size)
goto out;
}
+ r = table_prealloc_integrity(t, md);
+ if (r) {
+ DMERR("%s: could not register integrity profile.",
+ dm_device_name(md));
+ dm_table_destroy(t);
+ goto out;
+ }
+
down_write(&_hash_lock);
hc = dm_get_mdptr(md);
if (!hc || hc->md != md) {
diff --git a/drivers/md/dm-kcopyd.c b/drivers/md/dm-kcopyd.c
index 0a225da2127..3e3fc06cb86 100644
--- a/drivers/md/dm-kcopyd.c
+++ b/drivers/md/dm-kcopyd.c
@@ -297,7 +297,8 @@ static int run_complete_job(struct kcopyd_job *job)
dm_kcopyd_notify_fn fn = job->fn;
struct dm_kcopyd_client *kc = job->kc;
- kcopyd_put_pages(kc, job->pages);
+ if (job->pages)
+ kcopyd_put_pages(kc, job->pages);
mempool_free(job, kc->job_pool);
fn(read_err, write_err, context);
@@ -461,6 +462,7 @@ static void segment_complete(int read_err, unsigned long write_err,
sector_t progress = 0;
sector_t count = 0;
struct kcopyd_job *job = (struct kcopyd_job *) context;
+ struct dm_kcopyd_client *kc = job->kc;
mutex_lock(&job->lock);
@@ -490,7 +492,7 @@ static void segment_complete(int read_err, unsigned long write_err,
if (count) {
int i;
- struct kcopyd_job *sub_job = mempool_alloc(job->kc->job_pool,
+ struct kcopyd_job *sub_job = mempool_alloc(kc->job_pool,
GFP_NOIO);
*sub_job = *job;
@@ -509,13 +511,16 @@ static void segment_complete(int read_err, unsigned long write_err,
} else if (atomic_dec_and_test(&job->sub_jobs)) {
/*
- * To avoid a race we must keep the job around
- * until after the notify function has completed.
- * Otherwise the client may try and stop the job
- * after we've completed.
+ * Queue the completion callback to the kcopyd thread.
+ *
+ * Some callers assume that all the completions are called
+ * from a single thread and don't race with each other.
+ *
+ * We must not call the callback directly here because this
+ * code may not be executing in the thread.
*/
- job->fn(read_err, write_err, job->context);
- mempool_free(job, job->kc->job_pool);
+ push(&kc->complete_jobs, job);
+ wake(kc);
}
}
@@ -528,6 +533,8 @@ static void split_job(struct kcopyd_job *job)
{
int i;
+ atomic_inc(&job->kc->nr_jobs);
+
atomic_set(&job->sub_jobs, SPLIT_COUNT);
for (i = 0; i < SPLIT_COUNT; i++)
segment_complete(0, 0u, job);
diff --git a/drivers/md/dm-linear.c b/drivers/md/dm-linear.c
index bfa107f59d9..79fb53e51c7 100644
--- a/drivers/md/dm-linear.c
+++ b/drivers/md/dm-linear.c
@@ -142,7 +142,6 @@ static struct target_type linear_target = {
.status = linear_status,
.ioctl = linear_ioctl,
.merge = linear_merge,
- .features = DM_TARGET_SUPPORTS_BARRIERS,
};
int __init dm_linear_init(void)
diff --git a/drivers/md/dm-table.c b/drivers/md/dm-table.c
index e8361b191b9..429b50b975d 100644
--- a/drivers/md/dm-table.c
+++ b/drivers/md/dm-table.c
@@ -52,8 +52,6 @@ struct dm_table {
sector_t *highs;
struct dm_target *targets;
- unsigned barriers_supported:1;
-
/*
* Indicates the rw permissions for the new logical
* device. This should be a combination of FMODE_READ
@@ -243,7 +241,6 @@ int dm_table_create(struct dm_table **result, fmode_t mode,
INIT_LIST_HEAD(&t->devices);
atomic_set(&t->holders, 0);
- t->barriers_supported = 1;
if (!num_targets)
num_targets = KEYS_PER_NODE;
@@ -751,10 +748,6 @@ int dm_table_add_target(struct dm_table *t, const char *type,
/* FIXME: the plan is to combine high here and then have
* the merge fn apply the target level restrictions. */
combine_restrictions_low(&t->limits, &tgt->limits);
-
- if (!(tgt->type->features & DM_TARGET_SUPPORTS_BARRIERS))
- t->barriers_supported = 0;
-
return 0;
bad:
@@ -799,12 +792,6 @@ int dm_table_complete(struct dm_table *t)
check_for_valid_limits(&t->limits);
- /*
- * We only support barriers if there is exactly one underlying device.
- */
- if (!list_is_singular(&t->devices))
- t->barriers_supported = 0;
-
/* how many indexes will the btree have ? */
leaf_nodes = dm_div_up(t->num_targets, KEYS_PER_NODE);
t->depth = 1 + int_log(leaf_nodes, CHILDREN_PER_NODE);
@@ -879,6 +866,45 @@ struct dm_target *dm_table_find_target(struct dm_table *t, sector_t sector)
return &t->targets[(KEYS_PER_NODE * n) + k];
}
+/*
+ * Set the integrity profile for this device if all devices used have
+ * matching profiles.
+ */
+static void dm_table_set_integrity(struct dm_table *t)
+{
+ struct list_head *devices = dm_table_get_devices(t);
+ struct dm_dev_internal *prev = NULL, *dd = NULL;
+
+ if (!blk_get_integrity(dm_disk(t->md)))
+ return;
+
+ list_for_each_entry(dd, devices, list) {
+ if (prev &&
+ blk_integrity_compare(prev->dm_dev.bdev->bd_disk,
+ dd->dm_dev.bdev->bd_disk) < 0) {
+ DMWARN("%s: integrity not set: %s and %s mismatch",
+ dm_device_name(t->md),
+ prev->dm_dev.bdev->bd_disk->disk_name,
+ dd->dm_dev.bdev->bd_disk->disk_name);
+ goto no_integrity;
+ }
+ prev = dd;
+ }
+
+ if (!prev || !bdev_get_integrity(prev->dm_dev.bdev))
+ goto no_integrity;
+
+ blk_integrity_register(dm_disk(t->md),
+ bdev_get_integrity(prev->dm_dev.bdev));
+
+ return;
+
+no_integrity:
+ blk_integrity_register(dm_disk(t->md), NULL);
+
+ return;
+}
+
void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q)
{
/*
@@ -899,6 +925,7 @@ void dm_table_set_restrictions(struct dm_table *t, struct request_queue *q)
else
queue_flag_set_unlocked(QUEUE_FLAG_CLUSTER, q);
+ dm_table_set_integrity(t);
}
unsigned int dm_table_get_num_targets(struct dm_table *t)
@@ -1019,12 +1046,6 @@ struct mapped_device *dm_table_get_md(struct dm_table *t)
return t->md;
}
-int dm_table_barrier_ok(struct dm_table *t)
-{
- return t->barriers_supported;
-}
-EXPORT_SYMBOL(dm_table_barrier_ok);
-
EXPORT_SYMBOL(dm_vcalloc);
EXPORT_SYMBOL(dm_get_device);
EXPORT_SYMBOL(dm_put_device);
diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 788ba96a625..8a994be035b 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -89,12 +89,13 @@ union map_info *dm_get_mapinfo(struct bio *bio)
/*
* Bits for the md->flags field.
*/
-#define DMF_BLOCK_IO 0
+#define DMF_BLOCK_IO_FOR_SUSPEND 0
#define DMF_SUSPENDED 1
#define DMF_FROZEN 2
#define DMF_FREEING 3
#define DMF_DELETING 4
#define DMF_NOFLUSH_SUSPENDING 5
+#define DMF_QUEUE_IO_TO_THREAD 6
/*
* Work processed by per-device workqueue.
@@ -124,6 +125,11 @@ struct mapped_device {
spinlock_t deferred_lock;
/*
+ * An error from the barrier request currently being processed.
+ */
+ int barrier_error;
+
+ /*
* Processing queue (flush/barriers)
*/
struct workqueue_struct *wq;
@@ -424,6 +430,10 @@ static void end_io_acct(struct dm_io *io)
part_stat_add(cpu, &dm_disk(md)->part0, ticks[rw], duration);
part_stat_unlock();
+ /*
+ * After this is decremented the bio must not be touched if it is
+ * a barrier.
+ */
dm_disk(md)->part0.in_flight = pending =
atomic_dec_return(&md->pending);
@@ -435,21 +445,18 @@ static void end_io_acct(struct dm_io *io)
/*
* Add the bio to the list of deferred io.
*/
-static int queue_io(struct mapped_device *md, struct bio *bio)
+static void queue_io(struct mapped_device *md, struct bio *bio)
{
down_write(&md->io_lock);
- if (!test_bit(DMF_BLOCK_IO, &md->flags)) {
- up_write(&md->io_lock);
- return 1;
- }
-
spin_lock_irq(&md->deferred_lock);
bio_list_add(&md->deferred, bio);
spin_unlock_irq(&md->deferred_lock);
+ if (!test_and_set_bit(DMF_QUEUE_IO_TO_THREAD, &md->flags))
+ queue_work(md->wq, &md->work);
+
up_write(&md->io_lock);
- return 0; /* deferred successfully */
}
/*
@@ -533,25 +540,35 @@ static void dec_pending(struct dm_io *io, int error)
*/
spin_lock_irqsave(&md->deferred_lock, flags);
if (__noflush_suspending(md))
- bio_list_add(&md->deferred, io->bio);
+ bio_list_add_head(&md->deferred, io->bio);
else
/* noflush suspend was interrupted. */
io->error = -EIO;
spin_unlock_irqrestore(&md->deferred_lock, flags);
}
- end_io_acct(io);
-
io_error = io->error;
bio = io->bio;
- free_io(md, io);
+ if (bio_barrier(bio)) {
+ /*
+ * There can be just one barrier request so we use
+ * a per-device variable for error reporting.
+ * Note that you can't touch the bio after end_io_acct
+ */
+ md->barrier_error = io_error;
+ end_io_acct(io);
+ } else {
+ end_io_acct(io);
- if (io_error != DM_ENDIO_REQUEUE) {
- trace_block_bio_complete(md->queue, bio);
+ if (io_error != DM_ENDIO_REQUEUE) {
+ trace_block_bio_complete(md->queue, bio);
- bio_endio(bio, io_error);
+ bio_endio(bio, io_error);
+ }
}
+
+ free_io(md, io);
}
}
@@ -693,13 +710,19 @@ static struct bio *split_bvec(struct bio *bio, sector_t sector,
clone->bi_sector = sector;
clone->bi_bdev = bio->bi_bdev;
- clone->bi_rw = bio->bi_rw;
+ clone->bi_rw = bio->bi_rw & ~(1 << BIO_RW_BARRIER);
clone->bi_vcnt = 1;
clone->bi_size = to_bytes(len);
clone->bi_io_vec->bv_offset = offset;
clone->bi_io_vec->bv_len = clone->bi_size;
clone->bi_flags |= 1 << BIO_CLONED;
+ if (bio_integrity(bio)) {
+ bio_integrity_clone(clone, bio, GFP_NOIO);
+ bio_integrity_trim(clone,
+ bio_sector_offset(bio, idx, offset), len);
+ }
+
return clone;
}
@@ -714,6 +737,7 @@ static struct bio *clone_bio(struct bio *bio, sector_t sector,
clone = bio_alloc_bioset(GFP_NOIO, bio->bi_max_vecs, bs);
__bio_clone(clone, bio);
+ clone->bi_rw &= ~(1 << BIO_RW_BARRIER);
clone->bi_destructor = dm_bio_destructor;
clone->bi_sector = sector;
clone->bi_idx = idx;
@@ -721,6 +745,14 @@ static struct bio *clone_bio(struct bio *bio, sector_t sector,
clone->bi_size = to_bytes(len);
clone->bi_flags &= ~(1 << BIO_SEG_VALID);
+ if (bio_integrity(bio)) {
+ bio_integrity_clone(clone, bio, GFP_NOIO);
+
+ if (idx != bio->bi_idx || clone->bi_size < bio->bi_size)
+ bio_integrity_trim(clone,
+ bio_sector_offset(bio, idx, 0), len);
+ }
+
return clone;
}
@@ -834,14 +866,13 @@ static void __split_and_process_bio(struct mapped_device *md, struct bio *bio)
ci.map = dm_get_table(md);
if (unlikely(!ci.map)) {
- bio_io_error(bio);
- return;
- }
- if (unlikely(bio_barrier(bio) && !dm_table_barrier_ok(ci.map))) {
- dm_table_put(ci.map);
- bio_endio(bio, -EOPNOTSUPP);
+ if (!bio_barrier(bio))
+ bio_io_error(bio);
+ else
+ md->barrier_error = -EIO;
return;
}
+
ci.md = md;
ci.bio = bio;
ci.io = alloc_io(md);
@@ -918,7 +949,6 @@ out:
*/
static int dm_request(struct request_queue *q, struct bio *bio)
{
- int r = -EIO;
int rw = bio_data_dir(bio);
struct mapped_device *md = q->queuedata;
int cpu;
@@ -931,34 +961,27 @@ static int dm_request(struct request_queue *q, struct bio *bio)
part_stat_unlock();
/*
- * If we're suspended we have to queue
- * this io for later.
+ * If we're suspended or the thread is processing barriers
+ * we have to queue this io for later.
*/
- while (test_bit(DMF_BLOCK_IO, &md->flags)) {
+ if (unlikely(test_bit(DMF_QUEUE_IO_TO_THREAD, &md->flags)) ||
+ unlikely(bio_barrier(bio))) {
up_read(&md->io_lock);
- if (bio_rw(bio) != READA)
- r = queue_io(md, bio);
+ if (unlikely(test_bit(DMF_BLOCK_IO_FOR_SUSPEND, &md->flags)) &&
+ bio_rw(bio) == READA) {
+ bio_io_error(bio);
+ return 0;
+ }
- if (r <= 0)
- goto out_req;
+ queue_io(md, bio);
- /*
- * We're in a while loop, because someone could suspend
- * before we get to the following read lock.
- */
- down_read(&md->io_lock);
+ return 0;
}
__split_and_process_bio(md, bio);
up_read(&md->io_lock);
return 0;
-
-out_req:
- if (r < 0)
- bio_io_error(bio);
-
- return 0;
}
static void dm_unplug_all(struct request_queue *q)
@@ -978,7 +1001,7 @@ static int dm_any_congested(void *congested_data, int bdi_bits)
struct mapped_device *md = congested_data;
struct dm_table *map;
- if (!test_bit(DMF_BLOCK_IO, &md->flags)) {
+ if (!test_bit(DMF_BLOCK_IO_FOR_SUSPEND, &md->flags)) {
map = dm_get_table(md);
if (map) {
r = dm_table_any_congested(map, bdi_bits);
@@ -1193,6 +1216,7 @@ static void free_dev(struct mapped_device *md)
mempool_destroy(md->tio_pool);
mempool_destroy(md->io_pool);
bioset_free(md->bs);
+ blk_integrity_unregister(md->disk);
del_gendisk(md->disk);
free_minor(minor);
@@ -1406,6 +1430,36 @@ static int dm_wait_for_completion(struct mapped_device *md, int interruptible)
return r;
}
+static int dm_flush(struct mapped_device *md)
+{
+ dm_wait_for_completion(md, TASK_UNINTERRUPTIBLE);
+ return 0;
+}
+
+static void process_barrier(struct mapped_device *md, struct bio *bio)
+{
+ int error = dm_flush(md);
+
+ if (unlikely(error)) {
+ bio_endio(bio, error);
+ return;
+ }
+ if (bio_empty_barrier(bio)) {
+ bio_endio(bio, 0);
+ return;
+ }
+
+ __split_and_process_bio(md, bio);
+
+ error = dm_flush(md);
+
+ if (!error && md->barrier_error)
+ error = md->barrier_error;
+
+ if (md->barrier_error != DM_ENDIO_REQUEUE)
+ bio_endio(bio, error);
+}
+
/*
* Process the deferred bios
*/
@@ -1417,25 +1471,34 @@ static void dm_wq_work(struct work_struct *work)
down_write(&md->io_lock);
-next_bio:
- spin_lock_irq(&md->deferred_lock);
- c = bio_list_pop(&md->deferred);
- spin_unlock_irq(&md->deferred_lock);
+ while (!test_bit(DMF_BLOCK_IO_FOR_SUSPEND, &md->flags)) {
+ spin_lock_irq(&md->deferred_lock);
+ c = bio_list_pop(&md->deferred);
+ spin_unlock_irq(&md->deferred_lock);
- if (c) {
- __split_and_process_bio(md, c);
- goto next_bio;
- }
+ if (!c) {
+ clear_bit(DMF_QUEUE_IO_TO_THREAD, &md->flags);
+ break;
+ }
- clear_bit(DMF_BLOCK_IO, &md->flags);
+ up_write(&md->io_lock);
+
+ if (bio_barrier(c))
+ process_barrier(md, c);
+ else
+ __split_and_process_bio(md, c);
+
+ down_write(&md->io_lock);
+ }
up_write(&md->io_lock);
}
static void dm_queue_flush(struct mapped_device *md)
{
+ clear_bit(DMF_BLOCK_IO_FOR_SUSPEND, &md->flags);
+ smp_mb__after_clear_bit();
queue_work(md->wq, &md->work);
- flush_workqueue(md->wq);
}
/*
@@ -1553,20 +1616,36 @@ int dm_suspend(struct mapped_device *md, unsigned suspend_flags)
}
/*
- * First we set the BLOCK_IO flag so no more ios will be mapped.
+ * Here we must make sure that no processes are submitting requests
+ * to target drivers i.e. no one may be executing
+ * __split_and_process_bio. This is called from dm_request and
+ * dm_wq_work.
+ *
+ * To get all processes out of __split_and_process_bio in dm_request,
+ * we take the write lock. To prevent any process from reentering
+ * __split_and_process_bio from dm_request, we set
+ * DMF_QUEUE_IO_TO_THREAD.
+ *
+ * To quiesce the thread (dm_wq_work), we set DMF_BLOCK_IO_FOR_SUSPEND
+ * and call flush_workqueue(md->wq). flush_workqueue will wait until
+ * dm_wq_work exits and DMF_BLOCK_IO_FOR_SUSPEND will prevent any
+ * further calls to __split_and_process_bio from dm_wq_work.
*/
down_write(&md->io_lock);
- set_bit(DMF_BLOCK_IO, &md->flags);
-
+ set_bit(DMF_BLOCK_IO_FOR_SUSPEND, &md->flags);
+ set_bit(DMF_QUEUE_IO_TO_THREAD, &md->flags);
up_write(&md->io_lock);
+ flush_workqueue(md->wq);
+
/*
- * Wait for the already-mapped ios to complete.
+ * At this point no more requests are entering target request routines.
+ * We call dm_wait_for_completion to wait for all existing requests
+ * to finish.
*/
r = dm_wait_for_completion(md, TASK_INTERRUPTIBLE);
down_write(&md->io_lock);
-
if (noflush)
clear_bit(DMF_NOFLUSH_SUSPENDING, &md->flags);
up_write(&md->io_lock);
@@ -1579,6 +1658,12 @@ int dm_suspend(struct mapped_device *md, unsigned suspend_flags)
goto out; /* pushback list is already flushed, so skip flush */
}
+ /*
+ * If dm_wait_for_completion returned 0, the device is completely
+ * quiescent now. There is no request-processing activity. All new
+ * requests are being added to md->deferred list.
+ */
+
dm_table_postsuspend_targets(map);
set_bit(DMF_SUSPENDED, &md->flags);
diff --git a/drivers/md/dm.h b/drivers/md/dm.h
index b48397c0abb..a31506d93e9 100644
--- a/drivers/md/dm.h
+++ b/drivers/md/dm.h
@@ -52,7 +52,6 @@ int dm_table_any_congested(struct dm_table *t, int bdi_bits);
* To check the return value from dm_table_find_target().
*/
#define dm_target_is_valid(t) ((t)->table)
-int dm_table_barrier_ok(struct dm_table *t);
/*-----------------------------------------------------------------
* A registry of target types.
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index c232d11a7ed..06084dbf127 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -208,7 +208,7 @@ static int mmc_read_ext_csd(struct mmc_card *card)
}
ext_csd_struct = ext_csd[EXT_CSD_REV];
- if (ext_csd_struct > 2) {
+ if (ext_csd_struct > 3) {
printk(KERN_ERR "%s: unrecognised EXT_CSD structure "
"version %d\n", mmc_hostname(card->host),
ext_csd_struct);
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index 26fc098d77c..cd81c395e16 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -363,15 +363,6 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
goto err;
/*
- * For SPI, enable CRC as appropriate.
- */
- if (mmc_host_is_spi(host)) {
- err = mmc_spi_set_crc(host, use_spi_crc);
- if (err)
- goto err;
- }
-
- /*
* Fetch CID from card.
*/
if (mmc_host_is_spi(host))
@@ -458,6 +449,18 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
}
/*
+ * For SPI, enable CRC as appropriate.
+ * This CRC enable is located AFTER the reading of the
+ * card registers because some SDHC cards are not able
+ * to provide valid CRCs for non-512-byte blocks.
+ */
+ if (mmc_host_is_spi(host)) {
+ err = mmc_spi_set_crc(host, use_spi_crc);
+ if (err)
+ goto free_card;
+ }
+
+ /*
* Attempt to change to high-speed (if supported)
*/
err = mmc_switch_hs(card);
diff --git a/drivers/mmc/host/imxmmc.c b/drivers/mmc/host/imxmmc.c
index eb29b1d933a..e0be21a4a69 100644
--- a/drivers/mmc/host/imxmmc.c
+++ b/drivers/mmc/host/imxmmc.c
@@ -307,13 +307,6 @@ static void imxmci_setup_data(struct imxmci_host *host, struct mmc_data *data)
wmb();
- if (host->actual_bus_width == MMC_BUS_WIDTH_4)
- BLR(host->dma) = 0; /* burst 64 byte read / 64 bytes write */
- else
- BLR(host->dma) = 16; /* burst 16 byte read / 16 bytes write */
-
- RSSR(host->dma) = DMA_REQ_SDHC;
-
set_bit(IMXMCI_PEND_DMA_DATA_b, &host->pending_events);
clear_bit(IMXMCI_PEND_CPU_DATA_b, &host->pending_events);
@@ -818,9 +811,11 @@ static void imxmci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
if (ios->bus_width == MMC_BUS_WIDTH_4) {
host->actual_bus_width = MMC_BUS_WIDTH_4;
imx_gpio_mode(PB11_PF_SD_DAT3);
+ BLR(host->dma) = 0; /* burst 64 byte read/write */
} else {
host->actual_bus_width = MMC_BUS_WIDTH_1;
imx_gpio_mode(GPIO_PORTB | GPIO_IN | GPIO_PUEN | 11);
+ BLR(host->dma) = 16; /* burst 16 byte read/write */
}
if (host->power_mode != ios->power_mode) {
@@ -938,7 +933,7 @@ static void imxmci_check_status(unsigned long data)
mod_timer(&host->timer, jiffies + (HZ>>1));
}
-static int imxmci_probe(struct platform_device *pdev)
+static int __init imxmci_probe(struct platform_device *pdev)
{
struct mmc_host *mmc;
struct imxmci_host *host = NULL;
@@ -1034,6 +1029,7 @@ static int imxmci_probe(struct platform_device *pdev)
}
host->dma_allocated = 1;
imx_dma_setup_handlers(host->dma, imxmci_dma_irq, NULL, host);
+ RSSR(host->dma) = DMA_REQ_SDHC;
tasklet_init(&host->tasklet, imxmci_tasklet_fnc, (unsigned long)host);
host->status_reg=0;
@@ -1079,7 +1075,7 @@ out:
return ret;
}
-static int imxmci_remove(struct platform_device *pdev)
+static int __exit imxmci_remove(struct platform_device *pdev)
{
struct mmc_host *mmc = platform_get_drvdata(pdev);
@@ -1145,8 +1141,7 @@ static int imxmci_resume(struct platform_device *dev)
#endif /* CONFIG_PM */
static struct platform_driver imxmci_driver = {
- .probe = imxmci_probe,
- .remove = imxmci_remove,
+ .remove = __exit_p(imxmci_remove),
.suspend = imxmci_suspend,
.resume = imxmci_resume,
.driver = {
@@ -1157,7 +1152,7 @@ static struct platform_driver imxmci_driver = {
static int __init imxmci_init(void)
{
- return platform_driver_register(&imxmci_driver);
+ return platform_driver_probe(&imxmci_driver, imxmci_probe);
}
static void __exit imxmci_exit(void)
diff --git a/drivers/mmc/host/mmc_spi.c b/drivers/mmc/host/mmc_spi.c
index 72f8bde4877..f48349d18c9 100644
--- a/drivers/mmc/host/mmc_spi.c
+++ b/drivers/mmc/host/mmc_spi.c
@@ -24,7 +24,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
-#include <linux/hrtimer.h>
+#include <linux/sched.h>
#include <linux/delay.h>
#include <linux/bio.h>
#include <linux/dma-mapping.h>
@@ -95,7 +95,7 @@
* reads which takes nowhere near that long. Older cards may be able to use
* shorter timeouts ... but why bother?
*/
-#define r1b_timeout ktime_set(3, 0)
+#define r1b_timeout (HZ * 3)
/****************************************************************************/
@@ -183,12 +183,11 @@ mmc_spi_readbytes(struct mmc_spi_host *host, unsigned len)
return status;
}
-static int
-mmc_spi_skip(struct mmc_spi_host *host, ktime_t timeout, unsigned n, u8 byte)
+static int mmc_spi_skip(struct mmc_spi_host *host, unsigned long timeout,
+ unsigned n, u8 byte)
{
u8 *cp = host->data->status;
-
- timeout = ktime_add(timeout, ktime_get());
+ unsigned long start = jiffies;
while (1) {
int status;
@@ -203,22 +202,26 @@ mmc_spi_skip(struct mmc_spi_host *host, ktime_t timeout, unsigned n, u8 byte)
return cp[i];
}
- /* REVISIT investigate msleep() to avoid busy-wait I/O
- * in at least some cases.
- */
- if (ktime_to_ns(ktime_sub(ktime_get(), timeout)) > 0)
+ if (time_is_before_jiffies(start + timeout))
break;
+
+ /* If we need long timeouts, we may release the CPU.
+ * We use jiffies here because we want to have a relation
+ * between elapsed time and the blocking of the scheduler.
+ */
+ if (time_is_before_jiffies(start+1))
+ schedule();
}
return -ETIMEDOUT;
}
static inline int
-mmc_spi_wait_unbusy(struct mmc_spi_host *host, ktime_t timeout)
+mmc_spi_wait_unbusy(struct mmc_spi_host *host, unsigned long timeout)
{
return mmc_spi_skip(host, timeout, sizeof(host->data->status), 0);
}
-static int mmc_spi_readtoken(struct mmc_spi_host *host, ktime_t timeout)
+static int mmc_spi_readtoken(struct mmc_spi_host *host, unsigned long timeout)
{
return mmc_spi_skip(host, timeout, 1, 0xff);
}
@@ -251,6 +254,10 @@ static int mmc_spi_response_get(struct mmc_spi_host *host,
u8 *cp = host->data->status;
u8 *end = cp + host->t.len;
int value = 0;
+ int bitshift;
+ u8 leftover = 0;
+ unsigned short rotator;
+ int i;
char tag[32];
snprintf(tag, sizeof(tag), " ... CMD%d response SPI_%s",
@@ -268,9 +275,8 @@ static int mmc_spi_response_get(struct mmc_spi_host *host,
/* Data block reads (R1 response types) may need more data... */
if (cp == end) {
- unsigned i;
-
cp = host->data->status;
+ end = cp+1;
/* Card sends N(CR) (== 1..8) bytes of all-ones then one
* status byte ... and we already scanned 2 bytes.
@@ -295,20 +301,34 @@ static int mmc_spi_response_get(struct mmc_spi_host *host,
}
checkstatus:
- if (*cp & 0x80) {
- dev_dbg(&host->spi->dev, "%s: INVALID RESPONSE, %02x\n",
- tag, *cp);
- value = -EBADR;
- goto done;
+ bitshift = 0;
+ if (*cp & 0x80) {
+ /* Houston, we have an ugly card with a bit-shifted response */
+ rotator = *cp++ << 8;
+ /* read the next byte */
+ if (cp == end) {
+ value = mmc_spi_readbytes(host, 1);
+ if (value < 0)
+ goto done;
+ cp = host->data->status;
+ end = cp+1;
+ }
+ rotator |= *cp++;
+ while (rotator & 0x8000) {
+ bitshift++;
+ rotator <<= 1;
+ }
+ cmd->resp[0] = rotator >> 8;
+ leftover = rotator;
+ } else {
+ cmd->resp[0] = *cp++;
}
-
- cmd->resp[0] = *cp++;
cmd->error = 0;
/* Status byte: the entire seven-bit R1 response. */
if (cmd->resp[0] != 0) {
if ((R1_SPI_PARAMETER | R1_SPI_ADDRESS
- | R1_SPI_ILLEGAL_COMMAND)
+ | R1_SPI_ILLEGAL_COMMAND)
& cmd->resp[0])
value = -EINVAL;
else if (R1_SPI_COM_CRC & cmd->resp[0])
@@ -336,12 +356,45 @@ checkstatus:
* SPI R5 == R1 + data byte; IO_RW_DIRECT
*/
case MMC_RSP_SPI_R2:
- cmd->resp[0] |= *cp << 8;
+ /* read the next byte */
+ if (cp == end) {
+ value = mmc_spi_readbytes(host, 1);
+ if (value < 0)
+ goto done;
+ cp = host->data->status;
+ end = cp+1;
+ }
+ if (bitshift) {
+ rotator = leftover << 8;
+ rotator |= *cp << bitshift;
+ cmd->resp[0] |= (rotator & 0xFF00);
+ } else {
+ cmd->resp[0] |= *cp << 8;
+ }
break;
/* SPI R3, R4, or R7 == R1 + 4 bytes */
case MMC_RSP_SPI_R3:
- cmd->resp[1] = get_unaligned_be32(cp);
+ rotator = leftover << 8;
+ cmd->resp[1] = 0;
+ for (i = 0; i < 4; i++) {
+ cmd->resp[1] <<= 8;
+ /* read the next byte */
+ if (cp == end) {
+ value = mmc_spi_readbytes(host, 1);
+ if (value < 0)
+ goto done;
+ cp = host->data->status;
+ end = cp+1;
+ }
+ if (bitshift) {
+ rotator |= *cp++ << bitshift;
+ cmd->resp[1] |= (rotator >> 8);
+ rotator <<= 8;
+ } else {
+ cmd->resp[1] |= *cp++;
+ }
+ }
break;
/* SPI R1 == just one status byte */
@@ -607,7 +660,7 @@ mmc_spi_setup_data_message(
*/
static int
mmc_spi_writeblock(struct mmc_spi_host *host, struct spi_transfer *t,
- ktime_t timeout)
+ unsigned long timeout)
{
struct spi_device *spi = host->spi;
int status, i;
@@ -717,11 +770,13 @@ mmc_spi_writeblock(struct mmc_spi_host *host, struct spi_transfer *t,
*/
static int
mmc_spi_readblock(struct mmc_spi_host *host, struct spi_transfer *t,
- ktime_t timeout)
+ unsigned long timeout)
{
struct spi_device *spi = host->spi;
int status;
struct scratch *scratch = host->data;
+ unsigned int bitshift;
+ u8 leftover;
/* At least one SD card sends an all-zeroes byte when N(CX)
* applies, before the all-ones bytes ... just cope with that.
@@ -733,38 +788,60 @@ mmc_spi_readblock(struct mmc_spi_host *host, struct spi_transfer *t,
if (status == 0xff || status == 0)
status = mmc_spi_readtoken(host, timeout);
- if (status == SPI_TOKEN_SINGLE) {
- if (host->dma_dev) {
- dma_sync_single_for_device(host->dma_dev,
- host->data_dma, sizeof(*scratch),
- DMA_BIDIRECTIONAL);
- dma_sync_single_for_device(host->dma_dev,
- t->rx_dma, t->len,
- DMA_FROM_DEVICE);
- }
+ if (status < 0) {
+ dev_dbg(&spi->dev, "read error %02x (%d)\n", status, status);
+ return status;
+ }
- status = spi_sync(spi, &host->m);
+ /* The token may be bit-shifted...
+ * the first 0-bit precedes the data stream.
+ */
+ bitshift = 7;
+ while (status & 0x80) {
+ status <<= 1;
+ bitshift--;
+ }
+ leftover = status << 1;
- if (host->dma_dev) {
- dma_sync_single_for_cpu(host->dma_dev,
- host->data_dma, sizeof(*scratch),
- DMA_BIDIRECTIONAL);
- dma_sync_single_for_cpu(host->dma_dev,
- t->rx_dma, t->len,
- DMA_FROM_DEVICE);
- }
+ if (host->dma_dev) {
+ dma_sync_single_for_device(host->dma_dev,
+ host->data_dma, sizeof(*scratch),
+ DMA_BIDIRECTIONAL);
+ dma_sync_single_for_device(host->dma_dev,
+ t->rx_dma, t->len,
+ DMA_FROM_DEVICE);
+ }
- } else {
- dev_dbg(&spi->dev, "read error %02x (%d)\n", status, status);
+ status = spi_sync(spi, &host->m);
- /* we've read extra garbage, timed out, etc */
- if (status < 0)
- return status;
+ if (host->dma_dev) {
+ dma_sync_single_for_cpu(host->dma_dev,
+ host->data_dma, sizeof(*scratch),
+ DMA_BIDIRECTIONAL);
+ dma_sync_single_for_cpu(host->dma_dev,
+ t->rx_dma, t->len,
+ DMA_FROM_DEVICE);
+ }
- /* low four bits are an R2 subset, fifth seems to be
- * vendor specific ... map them all to generic error..
+ if (bitshift) {
+ /* Walk through the data and the crc and do
+ * all the magic to get byte-aligned data.
*/
- return -EIO;
+ u8 *cp = t->rx_buf;
+ unsigned int len;
+ unsigned int bitright = 8 - bitshift;
+ u8 temp;
+ for (len = t->len; len; len--) {
+ temp = *cp;
+ *cp++ = leftover | (temp >> bitshift);
+ leftover = temp << bitright;
+ }
+ cp = (u8 *) &scratch->crc_val;
+ temp = *cp;
+ *cp++ = leftover | (temp >> bitshift);
+ leftover = temp << bitright;
+ temp = *cp;
+ *cp = leftover | (temp >> bitshift);
}
if (host->mmc->use_spi_crc) {
@@ -803,7 +880,7 @@ mmc_spi_data_do(struct mmc_spi_host *host, struct mmc_command *cmd,
unsigned n_sg;
int multiple = (data->blocks > 1);
u32 clock_rate;
- ktime_t timeout;
+ unsigned long timeout;
if (data->flags & MMC_DATA_READ)
direction = DMA_FROM_DEVICE;
@@ -817,8 +894,9 @@ mmc_spi_data_do(struct mmc_spi_host *host, struct mmc_command *cmd,
else
clock_rate = spi->max_speed_hz;
- timeout = ktime_add_ns(ktime_set(0, 0), data->timeout_ns +
- data->timeout_clks * 1000000 / clock_rate);
+ timeout = data->timeout_ns +
+ data->timeout_clks * 1000000 / clock_rate;
+ timeout = usecs_to_jiffies((unsigned int)(timeout / 1000)) + 1;
/* Handle scatterlist segments one at a time, with synch for
* each 512-byte block
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index d183be6f2a5..e62a22a7f00 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -298,7 +298,6 @@ mmc_omap_xfer_done(struct mmc_omap_host *host, struct mmc_data *data)
struct mmc_request *mrq = host->mrq;
host->mrq = NULL;
- mmc_omap_fclk_lazy_disable(host);
mmc_request_done(host->mmc, mrq);
return;
}
@@ -434,6 +433,8 @@ static irqreturn_t mmc_omap_irq(int irq, void *dev_id)
if (host->mrq == NULL) {
OMAP_HSMMC_WRITE(host->base, STAT,
OMAP_HSMMC_READ(host->base, STAT));
+ /* Flush posted write */
+ OMAP_HSMMC_READ(host->base, STAT);
return IRQ_HANDLED;
}
@@ -489,8 +490,10 @@ static irqreturn_t mmc_omap_irq(int irq, void *dev_id)
}
OMAP_HSMMC_WRITE(host->base, STAT, status);
+ /* Flush posted write */
+ OMAP_HSMMC_READ(host->base, STAT);
- if (end_cmd || (status & CC))
+ if (end_cmd || ((status & CC) && host->cmd))
mmc_omap_cmd_done(host, host->cmd);
if (end_trans || (status & TC))
mmc_omap_xfer_done(host, data);
diff --git a/drivers/mmc/host/sdhci-pci.c b/drivers/mmc/host/sdhci-pci.c
index c5b316e2237..cd37962ec44 100644
--- a/drivers/mmc/host/sdhci-pci.c
+++ b/drivers/mmc/host/sdhci-pci.c
@@ -729,6 +729,6 @@ static void __exit sdhci_drv_exit(void)
module_init(sdhci_drv_init);
module_exit(sdhci_drv_exit);
-MODULE_AUTHOR("Pierre Ossman <drzeus@drzeus.cx>");
+MODULE_AUTHOR("Pierre Ossman <pierre@ossman.eu>");
MODULE_DESCRIPTION("Secure Digital Host Controller Interface PCI driver");
MODULE_LICENSE("GPL");
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index 30d8e3d4e6f..9234be2226e 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1935,7 +1935,7 @@ module_exit(sdhci_drv_exit);
module_param(debug_quirks, uint, 0444);
-MODULE_AUTHOR("Pierre Ossman <drzeus@drzeus.cx>");
+MODULE_AUTHOR("Pierre Ossman <pierre@ossman.eu>");
MODULE_DESCRIPTION("Secure Digital Host Controller Interface core driver");
MODULE_LICENSE("GPL");
diff --git a/drivers/mmc/host/wbsd.c b/drivers/mmc/host/wbsd.c
index adda3795203..89bf8cd25ca 100644
--- a/drivers/mmc/host/wbsd.c
+++ b/drivers/mmc/host/wbsd.c
@@ -2036,7 +2036,7 @@ module_param_named(irq, param_irq, uint, 0444);
module_param_named(dma, param_dma, int, 0444);
MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Pierre Ossman <drzeus@drzeus.cx>");
+MODULE_AUTHOR("Pierre Ossman <pierre@ossman.eu>");
MODULE_DESCRIPTION("Winbond W83L51xD SD/MMC card interface driver");
#ifdef CONFIG_PNP
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 9e7baec4572..9e921544ba2 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -977,6 +977,8 @@ config ETHOC
depends on NET_ETHERNET && HAS_IOMEM
select MII
select PHYLIB
+ select CRC32
+ select BITREVERSE
help
Say Y here if you want to use the OpenCores 10/100 Mbps Ethernet MAC.
@@ -2056,6 +2058,27 @@ config IGB_DCA
driver. DCA is a method for warming the CPU cache before data
is used, with the intent of lessening the impact of cache misses.
+config IGBVF
+ tristate "Intel(R) 82576 Virtual Function Ethernet support"
+ depends on PCI
+ ---help---
+ This driver supports Intel(R) 82576 virtual functions. For more
+ information on how to identify your adapter, go to the Adapter &
+ Driver ID Guide at:
+
+ <http://support.intel.com/support/network/adapter/pro100/21397.htm>
+
+ For general information and support, go to the Intel support
+ website at:
+
+ <http://support.intel.com>
+
+ More specific information on configuring the driver is in
+ <file:Documentation/networking/e1000.txt>.
+
+ To compile this driver as a module, choose M here. The module
+ will be called igbvf.
+
source "drivers/net/ixp2000/Kconfig"
config MYRI_SBUS
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index edc9a0d6171..1fc4602a6ff 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -6,6 +6,7 @@ obj-$(CONFIG_E1000) += e1000/
obj-$(CONFIG_E1000E) += e1000e/
obj-$(CONFIG_IBM_NEW_EMAC) += ibm_newemac/
obj-$(CONFIG_IGB) += igb/
+obj-$(CONFIG_IGBVF) += igbvf/
obj-$(CONFIG_IXGBE) += ixgbe/
obj-$(CONFIG_IXGB) += ixgb/
obj-$(CONFIG_IP1000) += ipg.o
diff --git a/drivers/net/bnx2.c b/drivers/net/bnx2.c
index 9d268be0b67..d47839184a0 100644
--- a/drivers/net/bnx2.c
+++ b/drivers/net/bnx2.c
@@ -3427,8 +3427,8 @@ static int __devinit
bnx2_request_firmware(struct bnx2 *bp)
{
const char *mips_fw_file, *rv2p_fw_file;
- const struct bnx2_mips_fw_file *mips;
- const struct bnx2_rv2p_fw_file *rv2p;
+ const struct bnx2_mips_fw_file *mips_fw;
+ const struct bnx2_rv2p_fw_file *rv2p_fw;
int rc;
if (CHIP_NUM(bp) == CHIP_NUM_5709) {
@@ -3452,21 +3452,21 @@ bnx2_request_firmware(struct bnx2 *bp)
rv2p_fw_file);
return rc;
}
- mips = (const struct bnx2_mips_fw_file *) bp->mips_firmware->data;
- rv2p = (const struct bnx2_rv2p_fw_file *) bp->rv2p_firmware->data;
- if (bp->mips_firmware->size < sizeof(*mips) ||
- check_mips_fw_entry(bp->mips_firmware, &mips->com) ||
- check_mips_fw_entry(bp->mips_firmware, &mips->cp) ||
- check_mips_fw_entry(bp->mips_firmware, &mips->rxp) ||
- check_mips_fw_entry(bp->mips_firmware, &mips->tpat) ||
- check_mips_fw_entry(bp->mips_firmware, &mips->txp)) {
+ mips_fw = (const struct bnx2_mips_fw_file *) bp->mips_firmware->data;
+ rv2p_fw = (const struct bnx2_rv2p_fw_file *) bp->rv2p_firmware->data;
+ if (bp->mips_firmware->size < sizeof(*mips_fw) ||
+ check_mips_fw_entry(bp->mips_firmware, &mips_fw->com) ||
+ check_mips_fw_entry(bp->mips_firmware, &mips_fw->cp) ||
+ check_mips_fw_entry(bp->mips_firmware, &mips_fw->rxp) ||
+ check_mips_fw_entry(bp->mips_firmware, &mips_fw->tpat) ||
+ check_mips_fw_entry(bp->mips_firmware, &mips_fw->txp)) {
printk(KERN_ERR PFX "Firmware file \"%s\" is invalid\n",
mips_fw_file);
return -EINVAL;
}
- if (bp->rv2p_firmware->size < sizeof(*rv2p) ||
- check_fw_section(bp->rv2p_firmware, &rv2p->proc1.rv2p, 8, true) ||
- check_fw_section(bp->rv2p_firmware, &rv2p->proc2.rv2p, 8, true)) {
+ if (bp->rv2p_firmware->size < sizeof(*rv2p_fw) ||
+ check_fw_section(bp->rv2p_firmware, &rv2p_fw->proc1.rv2p, 8, true) ||
+ check_fw_section(bp->rv2p_firmware, &rv2p_fw->proc2.rv2p, 8, true)) {
printk(KERN_ERR PFX "Firmware file \"%s\" is invalid\n",
rv2p_fw_file);
return -EINVAL;
diff --git a/drivers/net/eql.c b/drivers/net/eql.c
index 51ead7941f8..5210bb1027c 100644
--- a/drivers/net/eql.c
+++ b/drivers/net/eql.c
@@ -542,6 +542,8 @@ static int eql_s_slave_cfg(struct net_device *dev, slave_config_t __user *scp)
}
spin_unlock_bh(&eql->queue.lock);
+ dev_put(slave_dev);
+
return ret;
}
diff --git a/drivers/net/fec.c b/drivers/net/fec.c
index a515acccc61..682e7f0b558 100644
--- a/drivers/net/fec.c
+++ b/drivers/net/fec.c
@@ -1240,6 +1240,7 @@ static void __inline__ fec_phy_ack_intr(void)
icrp = (volatile unsigned long *) (MCF_MBAR + MCFSIM_ICR1);
*icrp = 0x0d000000;
}
+#endif
#ifdef CONFIG_M5272
static void __inline__ fec_get_mac(struct net_device *dev)
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 6b0697c565b..db7274e6222 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -152,14 +152,13 @@ static struct notifier_block dca_notifier = {
/* for netdump / net console */
static void igb_netpoll(struct net_device *);
#endif
-
#ifdef CONFIG_PCI_IOV
-static ssize_t igb_set_num_vfs(struct device *, struct device_attribute *,
- const char *, size_t);
-static ssize_t igb_show_num_vfs(struct device *, struct device_attribute *,
- char *);
-DEVICE_ATTR(num_vfs, S_IRUGO | S_IWUSR, igb_show_num_vfs, igb_set_num_vfs);
-#endif
+static unsigned int max_vfs = 0;
+module_param(max_vfs, uint, 0);
+MODULE_PARM_DESC(max_vfs, "Maximum number of virtual functions to allocate "
+ "per physical function");
+#endif /* CONFIG_PCI_IOV */
+
static pci_ers_result_t igb_io_error_detected(struct pci_dev *,
pci_channel_state_t);
static pci_ers_result_t igb_io_slot_reset(struct pci_dev *);
@@ -671,6 +670,21 @@ static void igb_set_interrupt_capability(struct igb_adapter *adapter)
/* If we can't do MSI-X, try MSI */
msi_only:
+#ifdef CONFIG_PCI_IOV
+ /* disable SR-IOV for non MSI-X configurations */
+ if (adapter->vf_data) {
+ struct e1000_hw *hw = &adapter->hw;
+ /* disable iov and allow time for transactions to clear */
+ pci_disable_sriov(adapter->pdev);
+ msleep(500);
+
+ kfree(adapter->vf_data);
+ adapter->vf_data = NULL;
+ wr32(E1000_IOVCTL, E1000_IOVCTL_REUSE_VFQ);
+ msleep(100);
+ dev_info(&adapter->pdev->dev, "IOV Disabled\n");
+ }
+#endif
adapter->num_rx_queues = 1;
adapter->num_tx_queues = 1;
if (!pci_enable_msi(adapter->pdev))
@@ -1238,6 +1252,39 @@ static int __devinit igb_probe(struct pci_dev *pdev,
if (err)
goto err_sw_init;
+#ifdef CONFIG_PCI_IOV
+ /* since iov functionality isn't critical to base device function we
+ * can accept failure. If it fails we don't allow iov to be enabled */
+ if (hw->mac.type == e1000_82576) {
+ /* 82576 supports a maximum of 7 VFs in addition to the PF */
+ unsigned int num_vfs = (max_vfs > 7) ? 7 : max_vfs;
+ int i;
+ unsigned char mac_addr[ETH_ALEN];
+
+ if (num_vfs)
+ adapter->vf_data = kcalloc(num_vfs,
+ sizeof(struct vf_data_storage),
+ GFP_KERNEL);
+ if (!adapter->vf_data) {
+ dev_err(&pdev->dev, "Could not allocate VF private "
+ "data - IOV enable failed\n");
+ } else {
+ err = pci_enable_sriov(pdev, num_vfs);
+ if (!err) {
+ adapter->vfs_allocated_count = num_vfs;
+ dev_info(&pdev->dev, "%d vfs allocated\n", num_vfs);
+ for (i = 0; i < adapter->vfs_allocated_count; i++) {
+ random_ether_addr(mac_addr);
+ igb_set_vf_mac(adapter, i, mac_addr);
+ }
+ } else {
+ kfree(adapter->vf_data);
+ adapter->vf_data = NULL;
+ }
+ }
+ }
+
+#endif
/* setup the private structure */
err = igb_sw_init(adapter);
if (err)
@@ -1397,19 +1444,6 @@ static int __devinit igb_probe(struct pci_dev *pdev,
if (err)
goto err_register;
-#ifdef CONFIG_PCI_IOV
- /* since iov functionality isn't critical to base device function we
- * can accept failure. If it fails we don't allow iov to be enabled */
- if (hw->mac.type == e1000_82576) {
- err = pci_enable_sriov(pdev, 0);
- if (!err)
- err = device_create_file(&netdev->dev,
- &dev_attr_num_vfs);
- if (err)
- dev_err(&pdev->dev, "Failed to initialize IOV\n");
- }
-
-#endif
#ifdef CONFIG_IGB_DCA
if (dca_add_requester(&pdev->dev) == 0) {
adapter->flags |= IGB_FLAG_DCA_ENABLED;
@@ -5422,89 +5456,4 @@ static void igb_vmm_control(struct igb_adapter *adapter)
igb_vmdq_set_replication_pf(hw, true);
}
-#ifdef CONFIG_PCI_IOV
-static ssize_t igb_show_num_vfs(struct device *dev,
- struct device_attribute *attr, char *buf)
-{
- struct igb_adapter *adapter = netdev_priv(to_net_dev(dev));
-
- return sprintf(buf, "%d\n", adapter->vfs_allocated_count);
-}
-
-static ssize_t igb_set_num_vfs(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
-{
- struct net_device *netdev = to_net_dev(dev);
- struct igb_adapter *adapter = netdev_priv(netdev);
- struct e1000_hw *hw = &adapter->hw;
- struct pci_dev *pdev = adapter->pdev;
- unsigned int num_vfs, i;
- unsigned char mac_addr[ETH_ALEN];
- int err;
-
- sscanf(buf, "%u", &num_vfs);
-
- if (num_vfs > 7)
- num_vfs = 7;
-
- /* value unchanged do nothing */
- if (num_vfs == adapter->vfs_allocated_count)
- return count;
-
- if (netdev->flags & IFF_UP)
- igb_close(netdev);
-
- igb_reset_interrupt_capability(adapter);
- igb_free_queues(adapter);
- adapter->tx_ring = NULL;
- adapter->rx_ring = NULL;
- adapter->vfs_allocated_count = 0;
-
- /* reclaim resources allocated to VFs since we are changing count */
- if (adapter->vf_data) {
- /* disable iov and allow time for transactions to clear */
- pci_disable_sriov(pdev);
- msleep(500);
-
- kfree(adapter->vf_data);
- adapter->vf_data = NULL;
- wr32(E1000_IOVCTL, E1000_IOVCTL_REUSE_VFQ);
- msleep(100);
- dev_info(&pdev->dev, "IOV Disabled\n");
- }
-
- if (num_vfs) {
- adapter->vf_data = kcalloc(num_vfs,
- sizeof(struct vf_data_storage),
- GFP_KERNEL);
- if (!adapter->vf_data) {
- dev_err(&pdev->dev, "Could not allocate VF private "
- "data - IOV enable failed\n");
- } else {
- err = pci_enable_sriov(pdev, num_vfs);
- if (!err) {
- adapter->vfs_allocated_count = num_vfs;
- dev_info(&pdev->dev, "%d vfs allocated\n", num_vfs);
- for (i = 0; i < adapter->vfs_allocated_count; i++) {
- random_ether_addr(mac_addr);
- igb_set_vf_mac(adapter, i, mac_addr);
- }
- } else {
- kfree(adapter->vf_data);
- adapter->vf_data = NULL;
- }
- }
- }
-
- igb_set_interrupt_capability(adapter);
- igb_alloc_queues(adapter);
- igb_reset(adapter);
-
- if (netdev->flags & IFF_UP)
- igb_open(netdev);
-
- return count;
-}
-#endif /* CONFIG_PCI_IOV */
/* igb_main.c */
diff --git a/drivers/net/igbvf/Makefile b/drivers/net/igbvf/Makefile
new file mode 100644
index 00000000000..c2f150d8f2d
--- /dev/null
+++ b/drivers/net/igbvf/Makefile
@@ -0,0 +1,38 @@
+################################################################################
+#
+# Intel(R) 82576 Virtual Function Linux driver
+# Copyright(c) 2009 Intel Corporation.
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms and conditions of the GNU General Public License,
+# version 2, as published by the Free Software Foundation.
+#
+# This program is distributed in the hope it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+# more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+#
+# The full GNU General Public License is included in this distribution in
+# the file called "COPYING".
+#
+# Contact Information:
+# e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+# Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+#
+################################################################################
+
+#
+# Makefile for the Intel(R) 82576 VF ethernet driver
+#
+
+obj-$(CONFIG_IGBVF) += igbvf.o
+
+igbvf-objs := vf.o \
+ mbx.o \
+ ethtool.o \
+ netdev.o
+
diff --git a/drivers/net/igbvf/defines.h b/drivers/net/igbvf/defines.h
new file mode 100644
index 00000000000..88a47537518
--- /dev/null
+++ b/drivers/net/igbvf/defines.h
@@ -0,0 +1,125 @@
+/*******************************************************************************
+
+ Intel(R) 82576 Virtual Function Linux driver
+ Copyright(c) 1999 - 2009 Intel Corporation.
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms and conditions of the GNU General Public License,
+ version 2, as published by the Free Software Foundation.
+
+ This program is distributed in the hope it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along with
+ this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+ The full GNU General Public License is included in this distribution in
+ the file called "COPYING".
+
+ Contact Information:
+ e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+ Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+#ifndef _E1000_DEFINES_H_
+#define _E1000_DEFINES_H_
+
+/* Number of Transmit and Receive Descriptors must be a multiple of 8 */
+#define REQ_TX_DESCRIPTOR_MULTIPLE 8
+#define REQ_RX_DESCRIPTOR_MULTIPLE 8
+
+/* IVAR valid bit */
+#define E1000_IVAR_VALID 0x80
+
+/* Receive Descriptor bit definitions */
+#define E1000_RXD_STAT_DD 0x01 /* Descriptor Done */
+#define E1000_RXD_STAT_EOP 0x02 /* End of Packet */
+#define E1000_RXD_STAT_IXSM 0x04 /* Ignore checksum */
+#define E1000_RXD_STAT_VP 0x08 /* IEEE VLAN Packet */
+#define E1000_RXD_STAT_UDPCS 0x10 /* UDP xsum calculated */
+#define E1000_RXD_STAT_TCPCS 0x20 /* TCP xsum calculated */
+#define E1000_RXD_STAT_IPCS 0x40 /* IP xsum calculated */
+#define E1000_RXD_ERR_SE 0x02 /* Symbol Error */
+#define E1000_RXD_SPC_VLAN_MASK 0x0FFF /* VLAN ID is in lower 12 bits */
+
+#define E1000_RXDEXT_STATERR_CE 0x01000000
+#define E1000_RXDEXT_STATERR_SE 0x02000000
+#define E1000_RXDEXT_STATERR_SEQ 0x04000000
+#define E1000_RXDEXT_STATERR_CXE 0x10000000
+#define E1000_RXDEXT_STATERR_TCPE 0x20000000
+#define E1000_RXDEXT_STATERR_IPE 0x40000000
+#define E1000_RXDEXT_STATERR_RXE 0x80000000
+
+
+/* Same mask, but for extended and packet split descriptors */
+#define E1000_RXDEXT_ERR_FRAME_ERR_MASK ( \
+ E1000_RXDEXT_STATERR_CE | \
+ E1000_RXDEXT_STATERR_SE | \
+ E1000_RXDEXT_STATERR_SEQ | \
+ E1000_RXDEXT_STATERR_CXE | \
+ E1000_RXDEXT_STATERR_RXE)
+
+/* Device Control */
+#define E1000_CTRL_RST 0x04000000 /* Global reset */
+
+/* Device Status */
+#define E1000_STATUS_FD 0x00000001 /* Full duplex.0=half,1=full */
+#define E1000_STATUS_LU 0x00000002 /* Link up.0=no,1=link */
+#define E1000_STATUS_TXOFF 0x00000010 /* transmission paused */
+#define E1000_STATUS_SPEED_10 0x00000000 /* Speed 10Mb/s */
+#define E1000_STATUS_SPEED_100 0x00000040 /* Speed 100Mb/s */
+#define E1000_STATUS_SPEED_1000 0x00000080 /* Speed 1000Mb/s */
+
+#define SPEED_10 10
+#define SPEED_100 100
+#define SPEED_1000 1000
+#define HALF_DUPLEX 1
+#define FULL_DUPLEX 2
+
+/* Transmit Descriptor bit definitions */
+#define E1000_TXD_POPTS_IXSM 0x01 /* Insert IP checksum */
+#define E1000_TXD_POPTS_TXSM 0x02 /* Insert TCP/UDP checksum */
+#define E1000_TXD_CMD_DEXT 0x20000000 /* Descriptor extension (0 = legacy) */
+#define E1000_TXD_STAT_DD 0x00000001 /* Descriptor Done */
+
+#define MAX_JUMBO_FRAME_SIZE 0x3F00
+
+/* 802.1q VLAN Packet Size */
+#define VLAN_TAG_SIZE 4 /* 802.3ac tag (not DMA'd) */
+
+/* Error Codes */
+#define E1000_SUCCESS 0
+#define E1000_ERR_CONFIG 3
+#define E1000_ERR_MAC_INIT 5
+#define E1000_ERR_MBX 15
+
+#ifndef ETH_ADDR_LEN
+#define ETH_ADDR_LEN 6
+#endif
+
+/* SRRCTL bit definitions */
+#define E1000_SRRCTL_BSIZEPKT_SHIFT 10 /* Shift _right_ */
+#define E1000_SRRCTL_BSIZEHDRSIZE_MASK 0x00000F00
+#define E1000_SRRCTL_BSIZEHDRSIZE_SHIFT 2 /* Shift _left_ */
+#define E1000_SRRCTL_DESCTYPE_ADV_ONEBUF 0x02000000
+#define E1000_SRRCTL_DESCTYPE_HDR_SPLIT_ALWAYS 0x0A000000
+#define E1000_SRRCTL_DESCTYPE_MASK 0x0E000000
+#define E1000_SRRCTL_DROP_EN 0x80000000
+
+#define E1000_SRRCTL_BSIZEPKT_MASK 0x0000007F
+#define E1000_SRRCTL_BSIZEHDR_MASK 0x00003F00
+
+/* Additional Descriptor Control definitions */
+#define E1000_TXDCTL_QUEUE_ENABLE 0x02000000 /* Enable specific Tx Queue */
+#define E1000_RXDCTL_QUEUE_ENABLE 0x02000000 /* Enable specific Rx Queue */
+
+/* Direct Cache Access (DCA) definitions */
+#define E1000_DCA_TXCTRL_TX_WB_RO_EN (1 << 11) /* Tx Desc writeback RO bit */
+
+#define E1000_VF_INIT_TIMEOUT 200 /* Number of retries to clear RSTI */
+
+#endif /* _E1000_DEFINES_H_ */
diff --git a/drivers/net/igbvf/ethtool.c b/drivers/net/igbvf/ethtool.c
new file mode 100644
index 00000000000..1dcaa690531
--- /dev/null
+++ b/drivers/net/igbvf/ethtool.c
@@ -0,0 +1,540 @@
+/*******************************************************************************
+
+ Intel(R) 82576 Virtual Function Linux driver
+ Copyright(c) 2009 Intel Corporation.
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms and conditions of the GNU General Public License,
+ version 2, as published by the Free Software Foundation.
+
+ This program is distributed in the hope it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along with
+ this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+ The full GNU General Public License is included in this distribution in
+ the file called "COPYING".
+
+ Contact Information:
+ e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+ Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+/* ethtool support for igbvf */
+
+#include <linux/netdevice.h>
+#include <linux/ethtool.h>
+#include <linux/pci.h>
+#include <linux/vmalloc.h>
+#include <linux/delay.h>
+
+#include "igbvf.h"
+#include <linux/if_vlan.h>
+
+
+struct igbvf_stats {
+ char stat_string[ETH_GSTRING_LEN];
+ int sizeof_stat;
+ int stat_offset;
+ int base_stat_offset;
+};
+
+#define IGBVF_STAT(current, base) \
+ sizeof(((struct igbvf_adapter *)0)->current), \
+ offsetof(struct igbvf_adapter, current), \
+ offsetof(struct igbvf_adapter, base)
+
+static const struct igbvf_stats igbvf_gstrings_stats[] = {
+ { "rx_packets", IGBVF_STAT(stats.gprc, stats.base_gprc) },
+ { "tx_packets", IGBVF_STAT(stats.gptc, stats.base_gptc) },
+ { "rx_bytes", IGBVF_STAT(stats.gorc, stats.base_gorc) },
+ { "tx_bytes", IGBVF_STAT(stats.gotc, stats.base_gotc) },
+ { "multicast", IGBVF_STAT(stats.mprc, stats.base_mprc) },
+ { "lbrx_bytes", IGBVF_STAT(stats.gorlbc, stats.base_gorlbc) },
+ { "lbrx_packets", IGBVF_STAT(stats.gprlbc, stats.base_gprlbc) },
+ { "tx_restart_queue", IGBVF_STAT(restart_queue, zero_base) },
+ { "rx_long_byte_count", IGBVF_STAT(stats.gorc, stats.base_gorc) },
+ { "rx_csum_offload_good", IGBVF_STAT(hw_csum_good, zero_base) },
+ { "rx_csum_offload_errors", IGBVF_STAT(hw_csum_err, zero_base) },
+ { "rx_header_split", IGBVF_STAT(rx_hdr_split, zero_base) },
+ { "alloc_rx_buff_failed", IGBVF_STAT(alloc_rx_buff_failed, zero_base) },
+};
+
+#define IGBVF_GLOBAL_STATS_LEN ARRAY_SIZE(igbvf_gstrings_stats)
+
+static const char igbvf_gstrings_test[][ETH_GSTRING_LEN] = {
+ "Link test (on/offline)"
+};
+
+#define IGBVF_TEST_LEN ARRAY_SIZE(igbvf_gstrings_test)
+
+static int igbvf_get_settings(struct net_device *netdev,
+ struct ethtool_cmd *ecmd)
+{
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u32 status;
+
+ ecmd->supported = SUPPORTED_1000baseT_Full;
+
+ ecmd->advertising = ADVERTISED_1000baseT_Full;
+
+ ecmd->port = -1;
+ ecmd->transceiver = XCVR_DUMMY1;
+
+ status = er32(STATUS);
+ if (status & E1000_STATUS_LU) {
+ if (status & E1000_STATUS_SPEED_1000)
+ ecmd->speed = 1000;
+ else if (status & E1000_STATUS_SPEED_100)
+ ecmd->speed = 100;
+ else
+ ecmd->speed = 10;
+
+ if (status & E1000_STATUS_FD)
+ ecmd->duplex = DUPLEX_FULL;
+ else
+ ecmd->duplex = DUPLEX_HALF;
+ } else {
+ ecmd->speed = -1;
+ ecmd->duplex = -1;
+ }
+
+ ecmd->autoneg = AUTONEG_DISABLE;
+
+ return 0;
+}
+
+static u32 igbvf_get_link(struct net_device *netdev)
+{
+ return netif_carrier_ok(netdev);
+}
+
+static int igbvf_set_settings(struct net_device *netdev,
+ struct ethtool_cmd *ecmd)
+{
+ return -EOPNOTSUPP;
+}
+
+static void igbvf_get_pauseparam(struct net_device *netdev,
+ struct ethtool_pauseparam *pause)
+{
+ return;
+}
+
+static int igbvf_set_pauseparam(struct net_device *netdev,
+ struct ethtool_pauseparam *pause)
+{
+ return -EOPNOTSUPP;
+}
+
+static u32 igbvf_get_tx_csum(struct net_device *netdev)
+{
+ return ((netdev->features & NETIF_F_IP_CSUM) != 0);
+}
+
+static int igbvf_set_tx_csum(struct net_device *netdev, u32 data)
+{
+ if (data)
+ netdev->features |= (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM);
+ else
+ netdev->features &= ~(NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM);
+ return 0;
+}
+
+static int igbvf_set_tso(struct net_device *netdev, u32 data)
+{
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+ int i;
+ struct net_device *v_netdev;
+
+ if (data) {
+ netdev->features |= NETIF_F_TSO;
+ netdev->features |= NETIF_F_TSO6;
+ } else {
+ netdev->features &= ~NETIF_F_TSO;
+ netdev->features &= ~NETIF_F_TSO6;
+ /* disable TSO on all VLANs if they're present */
+ if (!adapter->vlgrp)
+ goto tso_out;
+ for (i = 0; i < VLAN_GROUP_ARRAY_LEN; i++) {
+ v_netdev = vlan_group_get_device(adapter->vlgrp, i);
+ if (!v_netdev)
+ continue;
+
+ v_netdev->features &= ~NETIF_F_TSO;
+ v_netdev->features &= ~NETIF_F_TSO6;
+ vlan_group_set_device(adapter->vlgrp, i, v_netdev);
+ }
+ }
+
+tso_out:
+ dev_info(&adapter->pdev->dev, "TSO is %s\n",
+ data ? "Enabled" : "Disabled");
+ adapter->flags |= FLAG_TSO_FORCE;
+ return 0;
+}
+
+static u32 igbvf_get_msglevel(struct net_device *netdev)
+{
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+ return adapter->msg_enable;
+}
+
+static void igbvf_set_msglevel(struct net_device *netdev, u32 data)
+{
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+ adapter->msg_enable = data;
+}
+
+static int igbvf_get_regs_len(struct net_device *netdev)
+{
+#define IGBVF_REGS_LEN 8
+ return IGBVF_REGS_LEN * sizeof(u32);
+}
+
+static void igbvf_get_regs(struct net_device *netdev,
+ struct ethtool_regs *regs, void *p)
+{
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ u32 *regs_buff = p;
+ u8 revision_id;
+
+ memset(p, 0, IGBVF_REGS_LEN * sizeof(u32));
+
+ pci_read_config_byte(adapter->pdev, PCI_REVISION_ID, &revision_id);
+
+ regs->version = (1 << 24) | (revision_id << 16) | adapter->pdev->device;
+
+ regs_buff[0] = er32(CTRL);
+ regs_buff[1] = er32(STATUS);
+
+ regs_buff[2] = er32(RDLEN(0));
+ regs_buff[3] = er32(RDH(0));
+ regs_buff[4] = er32(RDT(0));
+
+ regs_buff[5] = er32(TDLEN(0));
+ regs_buff[6] = er32(TDH(0));
+ regs_buff[7] = er32(TDT(0));
+}
+
+static int igbvf_get_eeprom_len(struct net_device *netdev)
+{
+ return 0;
+}
+
+static int igbvf_get_eeprom(struct net_device *netdev,
+ struct ethtool_eeprom *eeprom, u8 *bytes)
+{
+ return -EOPNOTSUPP;
+}
+
+static int igbvf_set_eeprom(struct net_device *netdev,
+ struct ethtool_eeprom *eeprom, u8 *bytes)
+{
+ return -EOPNOTSUPP;
+}
+
+static void igbvf_get_drvinfo(struct net_device *netdev,
+ struct ethtool_drvinfo *drvinfo)
+{
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+ char firmware_version[32] = "N/A";
+
+ strncpy(drvinfo->driver, igbvf_driver_name, 32);
+ strncpy(drvinfo->version, igbvf_driver_version, 32);
+ strncpy(drvinfo->fw_version, firmware_version, 32);
+ strncpy(drvinfo->bus_info, pci_name(adapter->pdev), 32);
+ drvinfo->regdump_len = igbvf_get_regs_len(netdev);
+ drvinfo->eedump_len = igbvf_get_eeprom_len(netdev);
+}
+
+static void igbvf_get_ringparam(struct net_device *netdev,
+ struct ethtool_ringparam *ring)
+{
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+ struct igbvf_ring *tx_ring = adapter->tx_ring;
+ struct igbvf_ring *rx_ring = adapter->rx_ring;
+
+ ring->rx_max_pending = IGBVF_MAX_RXD;
+ ring->tx_max_pending = IGBVF_MAX_TXD;
+ ring->rx_mini_max_pending = 0;
+ ring->rx_jumbo_max_pending = 0;
+ ring->rx_pending = rx_ring->count;
+ ring->tx_pending = tx_ring->count;
+ ring->rx_mini_pending = 0;
+ ring->rx_jumbo_pending = 0;
+}
+
+static int igbvf_set_ringparam(struct net_device *netdev,
+ struct ethtool_ringparam *ring)
+{
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+ struct igbvf_ring *temp_ring;
+ int err;
+ u32 new_rx_count, new_tx_count;
+
+ if ((ring->rx_mini_pending) || (ring->rx_jumbo_pending))
+ return -EINVAL;
+
+ new_rx_count = max(ring->rx_pending, (u32)IGBVF_MIN_RXD);
+ new_rx_count = min(new_rx_count, (u32)IGBVF_MAX_RXD);
+ new_rx_count = ALIGN(new_rx_count, REQ_RX_DESCRIPTOR_MULTIPLE);
+
+ new_tx_count = max(ring->tx_pending, (u32)IGBVF_MIN_TXD);
+ new_tx_count = min(new_tx_count, (u32)IGBVF_MAX_TXD);
+ new_tx_count = ALIGN(new_tx_count, REQ_TX_DESCRIPTOR_MULTIPLE);
+
+ if ((new_tx_count == adapter->tx_ring->count) &&
+ (new_rx_count == adapter->rx_ring->count)) {
+ /* nothing to do */
+ return 0;
+ }
+
+ temp_ring = vmalloc(sizeof(struct igbvf_ring));
+ if (!temp_ring)
+ return -ENOMEM;
+
+ while (test_and_set_bit(__IGBVF_RESETTING, &adapter->state))
+ msleep(1);
+
+ if (netif_running(adapter->netdev))
+ igbvf_down(adapter);
+
+ /*
+ * We can't just free everything and then setup again,
+ * because the ISRs in MSI-X mode get passed pointers
+ * to the tx and rx ring structs.
+ */
+ if (new_tx_count != adapter->tx_ring->count) {
+ memcpy(temp_ring, adapter->tx_ring, sizeof(struct igbvf_ring));
+
+ temp_ring->count = new_tx_count;
+ err = igbvf_setup_tx_resources(adapter, temp_ring);
+ if (err)
+ goto err_setup;
+
+ igbvf_free_tx_resources(adapter->tx_ring);
+
+ memcpy(adapter->tx_ring, temp_ring, sizeof(struct igbvf_ring));
+ }
+
+ if (new_rx_count != adapter->rx_ring->count) {
+ memcpy(temp_ring, adapter->rx_ring, sizeof(struct igbvf_ring));
+
+ temp_ring->count = new_rx_count;
+ err = igbvf_setup_rx_resources(adapter, temp_ring);
+ if (err)
+ goto err_setup;
+
+ igbvf_free_rx_resources(adapter->rx_ring);
+
+ memcpy(adapter->rx_ring, temp_ring,sizeof(struct igbvf_ring));
+ }
+
+ err = 0;
+err_setup:
+ if (netif_running(adapter->netdev))
+ igbvf_up(adapter);
+
+ clear_bit(__IGBVF_RESETTING, &adapter->state);
+ vfree(temp_ring);
+ return err;
+}
+
+static int igbvf_link_test(struct igbvf_adapter *adapter, u64 *data)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ *data = 0;
+
+ hw->mac.ops.check_for_link(hw);
+
+ if (!(er32(STATUS) & E1000_STATUS_LU))
+ *data = 1;
+
+ return *data;
+}
+
+static int igbvf_get_self_test_count(struct net_device *netdev)
+{
+ return IGBVF_TEST_LEN;
+}
+
+static int igbvf_get_stats_count(struct net_device *netdev)
+{
+ return IGBVF_GLOBAL_STATS_LEN;
+}
+
+static void igbvf_diag_test(struct net_device *netdev,
+ struct ethtool_test *eth_test, u64 *data)
+{
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+
+ set_bit(__IGBVF_TESTING, &adapter->state);
+
+ /*
+ * Link test performed before hardware reset so autoneg doesn't
+ * interfere with test result
+ */
+ if (igbvf_link_test(adapter, &data[0]))
+ eth_test->flags |= ETH_TEST_FL_FAILED;
+
+ clear_bit(__IGBVF_TESTING, &adapter->state);
+ msleep_interruptible(4 * 1000);
+}
+
+static void igbvf_get_wol(struct net_device *netdev,
+ struct ethtool_wolinfo *wol)
+{
+ wol->supported = 0;
+ wol->wolopts = 0;
+
+ return;
+}
+
+static int igbvf_set_wol(struct net_device *netdev,
+ struct ethtool_wolinfo *wol)
+{
+ return -EOPNOTSUPP;
+}
+
+static int igbvf_phys_id(struct net_device *netdev, u32 data)
+{
+ return 0;
+}
+
+static int igbvf_get_coalesce(struct net_device *netdev,
+ struct ethtool_coalesce *ec)
+{
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+
+ if (adapter->itr_setting <= 3)
+ ec->rx_coalesce_usecs = adapter->itr_setting;
+ else
+ ec->rx_coalesce_usecs = adapter->itr_setting >> 2;
+
+ return 0;
+}
+
+static int igbvf_set_coalesce(struct net_device *netdev,
+ struct ethtool_coalesce *ec)
+{
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+
+ if ((ec->rx_coalesce_usecs > IGBVF_MAX_ITR_USECS) ||
+ ((ec->rx_coalesce_usecs > 3) &&
+ (ec->rx_coalesce_usecs < IGBVF_MIN_ITR_USECS)) ||
+ (ec->rx_coalesce_usecs == 2))
+ return -EINVAL;
+
+ /* convert to rate of irq's per second */
+ if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3) {
+ adapter->itr = IGBVF_START_ITR;
+ adapter->itr_setting = ec->rx_coalesce_usecs;
+ } else {
+ adapter->itr = ec->rx_coalesce_usecs << 2;
+ adapter->itr_setting = adapter->itr;
+ }
+
+ writel(adapter->itr,
+ hw->hw_addr + adapter->rx_ring[0].itr_register);
+
+ return 0;
+}
+
+static int igbvf_nway_reset(struct net_device *netdev)
+{
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+ if (netif_running(netdev))
+ igbvf_reinit_locked(adapter);
+ return 0;
+}
+
+
+static void igbvf_get_ethtool_stats(struct net_device *netdev,
+ struct ethtool_stats *stats,
+ u64 *data)
+{
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+ int i;
+
+ igbvf_update_stats(adapter);
+ for (i = 0; i < IGBVF_GLOBAL_STATS_LEN; i++) {
+ char *p = (char *)adapter +
+ igbvf_gstrings_stats[i].stat_offset;
+ char *b = (char *)adapter +
+ igbvf_gstrings_stats[i].base_stat_offset;
+ data[i] = ((igbvf_gstrings_stats[i].sizeof_stat ==
+ sizeof(u64)) ? (*(u64 *)p - *(u64 *)b) :
+ (*(u32 *)p - *(u32 *)b));
+ }
+
+}
+
+static void igbvf_get_strings(struct net_device *netdev, u32 stringset,
+ u8 *data)
+{
+ u8 *p = data;
+ int i;
+
+ switch (stringset) {
+ case ETH_SS_TEST:
+ memcpy(data, *igbvf_gstrings_test, sizeof(igbvf_gstrings_test));
+ break;
+ case ETH_SS_STATS:
+ for (i = 0; i < IGBVF_GLOBAL_STATS_LEN; i++) {
+ memcpy(p, igbvf_gstrings_stats[i].stat_string,
+ ETH_GSTRING_LEN);
+ p += ETH_GSTRING_LEN;
+ }
+ break;
+ }
+}
+
+static const struct ethtool_ops igbvf_ethtool_ops = {
+ .get_settings = igbvf_get_settings,
+ .set_settings = igbvf_set_settings,
+ .get_drvinfo = igbvf_get_drvinfo,
+ .get_regs_len = igbvf_get_regs_len,
+ .get_regs = igbvf_get_regs,
+ .get_wol = igbvf_get_wol,
+ .set_wol = igbvf_set_wol,
+ .get_msglevel = igbvf_get_msglevel,
+ .set_msglevel = igbvf_set_msglevel,
+ .nway_reset = igbvf_nway_reset,
+ .get_link = igbvf_get_link,
+ .get_eeprom_len = igbvf_get_eeprom_len,
+ .get_eeprom = igbvf_get_eeprom,
+ .set_eeprom = igbvf_set_eeprom,
+ .get_ringparam = igbvf_get_ringparam,
+ .set_ringparam = igbvf_set_ringparam,
+ .get_pauseparam = igbvf_get_pauseparam,
+ .set_pauseparam = igbvf_set_pauseparam,
+ .get_tx_csum = igbvf_get_tx_csum,
+ .set_tx_csum = igbvf_set_tx_csum,
+ .get_sg = ethtool_op_get_sg,
+ .set_sg = ethtool_op_set_sg,
+ .get_tso = ethtool_op_get_tso,
+ .set_tso = igbvf_set_tso,
+ .self_test = igbvf_diag_test,
+ .get_strings = igbvf_get_strings,
+ .phys_id = igbvf_phys_id,
+ .get_ethtool_stats = igbvf_get_ethtool_stats,
+ .self_test_count = igbvf_get_self_test_count,
+ .get_stats_count = igbvf_get_stats_count,
+ .get_coalesce = igbvf_get_coalesce,
+ .set_coalesce = igbvf_set_coalesce,
+};
+
+void igbvf_set_ethtool_ops(struct net_device *netdev)
+{
+ /* have to "undeclare" const on this struct to remove warnings */
+ SET_ETHTOOL_OPS(netdev, (struct ethtool_ops *)&igbvf_ethtool_ops);
+}
diff --git a/drivers/net/igbvf/igbvf.h b/drivers/net/igbvf/igbvf.h
new file mode 100644
index 00000000000..936ed2a9435
--- /dev/null
+++ b/drivers/net/igbvf/igbvf.h
@@ -0,0 +1,335 @@
+/*******************************************************************************
+
+ Intel(R) 82576 Virtual Function Linux driver
+ Copyright(c) 2009 Intel Corporation.
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms and conditions of the GNU General Public License,
+ version 2, as published by the Free Software Foundation.
+
+ This program is distributed in the hope it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along with
+ this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+ The full GNU General Public License is included in this distribution in
+ the file called "COPYING".
+
+ Contact Information:
+ e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+ Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+/* Linux PRO/1000 Ethernet Driver main header file */
+
+#ifndef _IGBVF_H_
+#define _IGBVF_H_
+
+#include <linux/types.h>
+#include <linux/timer.h>
+#include <linux/io.h>
+#include <linux/netdevice.h>
+
+
+#include "vf.h"
+
+/* Forward declarations */
+struct igbvf_info;
+struct igbvf_adapter;
+
+/* Interrupt defines */
+#define IGBVF_START_ITR 648 /* ~6000 ints/sec */
+
+/* Interrupt modes, as used by the IntMode paramter */
+#define IGBVF_INT_MODE_LEGACY 0
+#define IGBVF_INT_MODE_MSI 1
+#define IGBVF_INT_MODE_MSIX 2
+
+/* Tx/Rx descriptor defines */
+#define IGBVF_DEFAULT_TXD 256
+#define IGBVF_MAX_TXD 4096
+#define IGBVF_MIN_TXD 80
+
+#define IGBVF_DEFAULT_RXD 256
+#define IGBVF_MAX_RXD 4096
+#define IGBVF_MIN_RXD 80
+
+#define IGBVF_MIN_ITR_USECS 10 /* 100000 irq/sec */
+#define IGBVF_MAX_ITR_USECS 10000 /* 100 irq/sec */
+
+/* RX descriptor control thresholds.
+ * PTHRESH - MAC will consider prefetch if it has fewer than this number of
+ * descriptors available in its onboard memory.
+ * Setting this to 0 disables RX descriptor prefetch.
+ * HTHRESH - MAC will only prefetch if there are at least this many descriptors
+ * available in host memory.
+ * If PTHRESH is 0, this should also be 0.
+ * WTHRESH - RX descriptor writeback threshold - MAC will delay writing back
+ * descriptors until either it has this many to write back, or the
+ * ITR timer expires.
+ */
+#define IGBVF_RX_PTHRESH 16
+#define IGBVF_RX_HTHRESH 8
+#define IGBVF_RX_WTHRESH 1
+
+/* this is the size past which hardware will drop packets when setting LPE=0 */
+#define MAXIMUM_ETHERNET_VLAN_SIZE 1522
+
+#define IGBVF_FC_PAUSE_TIME 0x0680 /* 858 usec */
+
+/* How many Tx Descriptors do we need to call netif_wake_queue ? */
+#define IGBVF_TX_QUEUE_WAKE 32
+/* How many Rx Buffers do we bundle into one write to the hardware ? */
+#define IGBVF_RX_BUFFER_WRITE 16 /* Must be power of 2 */
+
+#define AUTO_ALL_MODES 0
+#define IGBVF_EEPROM_APME 0x0400
+
+#define IGBVF_MNG_VLAN_NONE (-1)
+
+/* Number of packet split data buffers (not including the header buffer) */
+#define PS_PAGE_BUFFERS (MAX_PS_BUFFERS - 1)
+
+enum igbvf_boards {
+ board_vf,
+};
+
+struct igbvf_queue_stats {
+ u64 packets;
+ u64 bytes;
+};
+
+/*
+ * wrappers around a pointer to a socket buffer,
+ * so a DMA handle can be stored along with the buffer
+ */
+struct igbvf_buffer {
+ dma_addr_t dma;
+ struct sk_buff *skb;
+ union {
+ /* Tx */
+ struct {
+ unsigned long time_stamp;
+ u16 length;
+ u16 next_to_watch;
+ };
+ /* Rx */
+ struct {
+ struct page *page;
+ u64 page_dma;
+ unsigned int page_offset;
+ };
+ };
+ struct page *page;
+};
+
+union igbvf_desc {
+ union e1000_adv_rx_desc rx_desc;
+ union e1000_adv_tx_desc tx_desc;
+ struct e1000_adv_tx_context_desc tx_context_desc;
+};
+
+struct igbvf_ring {
+ struct igbvf_adapter *adapter; /* backlink */
+ union igbvf_desc *desc; /* pointer to ring memory */
+ dma_addr_t dma; /* phys address of ring */
+ unsigned int size; /* length of ring in bytes */
+ unsigned int count; /* number of desc. in ring */
+
+ u16 next_to_use;
+ u16 next_to_clean;
+
+ u16 head;
+ u16 tail;
+
+ /* array of buffer information structs */
+ struct igbvf_buffer *buffer_info;
+ struct napi_struct napi;
+
+ char name[IFNAMSIZ + 5];
+ u32 eims_value;
+ u32 itr_val;
+ u16 itr_register;
+ int set_itr;
+
+ struct sk_buff *rx_skb_top;
+
+ struct igbvf_queue_stats stats;
+};
+
+/* board specific private data structure */
+struct igbvf_adapter {
+ struct timer_list watchdog_timer;
+ struct timer_list blink_timer;
+
+ struct work_struct reset_task;
+ struct work_struct watchdog_task;
+
+ const struct igbvf_info *ei;
+
+ struct vlan_group *vlgrp;
+ u32 bd_number;
+ u32 rx_buffer_len;
+ u32 polling_interval;
+ u16 mng_vlan_id;
+ u16 link_speed;
+ u16 link_duplex;
+
+ spinlock_t tx_queue_lock; /* prevent concurrent tail updates */
+
+ /* track device up/down/testing state */
+ unsigned long state;
+
+ /* Interrupt Throttle Rate */
+ u32 itr;
+ u32 itr_setting;
+ u16 tx_itr;
+ u16 rx_itr;
+
+ /*
+ * Tx
+ */
+ struct igbvf_ring *tx_ring /* One per active queue */
+ ____cacheline_aligned_in_smp;
+
+ unsigned long tx_queue_len;
+ unsigned int restart_queue;
+ u32 txd_cmd;
+
+ bool detect_tx_hung;
+ u8 tx_timeout_factor;
+
+ u32 tx_int_delay;
+ u32 tx_abs_int_delay;
+
+ unsigned int total_tx_bytes;
+ unsigned int total_tx_packets;
+ unsigned int total_rx_bytes;
+ unsigned int total_rx_packets;
+
+ /* Tx stats */
+ u32 tx_timeout_count;
+ u32 tx_fifo_head;
+ u32 tx_head_addr;
+ u32 tx_fifo_size;
+ u32 tx_dma_failed;
+
+ /*
+ * Rx
+ */
+ struct igbvf_ring *rx_ring;
+
+ u32 rx_int_delay;
+ u32 rx_abs_int_delay;
+
+ /* Rx stats */
+ u64 hw_csum_err;
+ u64 hw_csum_good;
+ u64 rx_hdr_split;
+ u32 alloc_rx_buff_failed;
+ u32 rx_dma_failed;
+
+ unsigned int rx_ps_hdr_size;
+ u32 max_frame_size;
+ u32 min_frame_size;
+
+ /* OS defined structs */
+ struct net_device *netdev;
+ struct pci_dev *pdev;
+ struct net_device_stats net_stats;
+ spinlock_t stats_lock; /* prevent concurrent stats updates */
+
+ /* structs defined in e1000_hw.h */
+ struct e1000_hw hw;
+
+ /* The VF counters don't clear on read so we have to get a base
+ * count on driver start up and always subtract that base on
+ * on the first update, thus the flag..
+ */
+ struct e1000_vf_stats stats;
+ u64 zero_base;
+
+ struct igbvf_ring test_tx_ring;
+ struct igbvf_ring test_rx_ring;
+ u32 test_icr;
+
+ u32 msg_enable;
+ struct msix_entry *msix_entries;
+ int int_mode;
+ u32 eims_enable_mask;
+ u32 eims_other;
+ u32 int_counter0;
+ u32 int_counter1;
+
+ u32 eeprom_wol;
+ u32 wol;
+ u32 pba;
+
+ bool fc_autoneg;
+
+ unsigned long led_status;
+
+ unsigned int flags;
+};
+
+struct igbvf_info {
+ enum e1000_mac_type mac;
+ unsigned int flags;
+ u32 pba;
+ void (*init_ops)(struct e1000_hw *);
+ s32 (*get_variants)(struct igbvf_adapter *);
+};
+
+/* hardware capability, feature, and workaround flags */
+#define FLAG_HAS_HW_VLAN_FILTER (1 << 0)
+#define FLAG_HAS_JUMBO_FRAMES (1 << 1)
+#define FLAG_MSI_ENABLED (1 << 2)
+#define FLAG_RX_CSUM_ENABLED (1 << 3)
+#define FLAG_TSO_FORCE (1 << 4)
+
+#define IGBVF_RX_DESC_ADV(R, i) \
+ (&((((R).desc))[i].rx_desc))
+#define IGBVF_TX_DESC_ADV(R, i) \
+ (&((((R).desc))[i].tx_desc))
+#define IGBVF_TX_CTXTDESC_ADV(R, i) \
+ (&((((R).desc))[i].tx_context_desc))
+
+enum igbvf_state_t {
+ __IGBVF_TESTING,
+ __IGBVF_RESETTING,
+ __IGBVF_DOWN
+};
+
+enum latency_range {
+ lowest_latency = 0,
+ low_latency = 1,
+ bulk_latency = 2,
+ latency_invalid = 255
+};
+
+extern char igbvf_driver_name[];
+extern const char igbvf_driver_version[];
+
+extern void igbvf_check_options(struct igbvf_adapter *);
+extern void igbvf_set_ethtool_ops(struct net_device *);
+
+extern int igbvf_up(struct igbvf_adapter *);
+extern void igbvf_down(struct igbvf_adapter *);
+extern void igbvf_reinit_locked(struct igbvf_adapter *);
+extern void igbvf_reset(struct igbvf_adapter *);
+extern int igbvf_setup_rx_resources(struct igbvf_adapter *, struct igbvf_ring *);
+extern int igbvf_setup_tx_resources(struct igbvf_adapter *, struct igbvf_ring *);
+extern void igbvf_free_rx_resources(struct igbvf_ring *);
+extern void igbvf_free_tx_resources(struct igbvf_ring *);
+extern void igbvf_update_stats(struct igbvf_adapter *);
+extern void igbvf_set_interrupt_capability(struct igbvf_adapter *);
+extern void igbvf_reset_interrupt_capability(struct igbvf_adapter *);
+
+extern unsigned int copybreak;
+
+#endif /* _IGBVF_H_ */
diff --git a/drivers/net/igbvf/mbx.c b/drivers/net/igbvf/mbx.c
new file mode 100644
index 00000000000..819a8ec901d
--- /dev/null
+++ b/drivers/net/igbvf/mbx.c
@@ -0,0 +1,350 @@
+/*******************************************************************************
+
+ Intel(R) 82576 Virtual Function Linux driver
+ Copyright(c) 2009 Intel Corporation.
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms and conditions of the GNU General Public License,
+ version 2, as published by the Free Software Foundation.
+
+ This program is distributed in the hope it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along with
+ this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+ The full GNU General Public License is included in this distribution in
+ the file called "COPYING".
+
+ Contact Information:
+ e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+ Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+#include "mbx.h"
+
+/**
+ * e1000_poll_for_msg - Wait for message notification
+ * @hw: pointer to the HW structure
+ *
+ * returns SUCCESS if it successfully received a message notification
+ **/
+static s32 e1000_poll_for_msg(struct e1000_hw *hw)
+{
+ struct e1000_mbx_info *mbx = &hw->mbx;
+ int countdown = mbx->timeout;
+
+ if (!mbx->ops.check_for_msg)
+ goto out;
+
+ while (countdown && mbx->ops.check_for_msg(hw)) {
+ countdown--;
+ udelay(mbx->usec_delay);
+ }
+
+ /* if we failed, all future posted messages fail until reset */
+ if (!countdown)
+ mbx->timeout = 0;
+out:
+ return countdown ? E1000_SUCCESS : -E1000_ERR_MBX;
+}
+
+/**
+ * e1000_poll_for_ack - Wait for message acknowledgement
+ * @hw: pointer to the HW structure
+ *
+ * returns SUCCESS if it successfully received a message acknowledgement
+ **/
+static s32 e1000_poll_for_ack(struct e1000_hw *hw)
+{
+ struct e1000_mbx_info *mbx = &hw->mbx;
+ int countdown = mbx->timeout;
+
+ if (!mbx->ops.check_for_ack)
+ goto out;
+
+ while (countdown && mbx->ops.check_for_ack(hw)) {
+ countdown--;
+ udelay(mbx->usec_delay);
+ }
+
+ /* if we failed, all future posted messages fail until reset */
+ if (!countdown)
+ mbx->timeout = 0;
+out:
+ return countdown ? E1000_SUCCESS : -E1000_ERR_MBX;
+}
+
+/**
+ * e1000_read_posted_mbx - Wait for message notification and receive message
+ * @hw: pointer to the HW structure
+ * @msg: The message buffer
+ * @size: Length of buffer
+ *
+ * returns SUCCESS if it successfully received a message notification and
+ * copied it into the receive buffer.
+ **/
+static s32 e1000_read_posted_mbx(struct e1000_hw *hw, u32 *msg, u16 size)
+{
+ struct e1000_mbx_info *mbx = &hw->mbx;
+ s32 ret_val = -E1000_ERR_MBX;
+
+ if (!mbx->ops.read)
+ goto out;
+
+ ret_val = e1000_poll_for_msg(hw);
+
+ /* if ack received read message, otherwise we timed out */
+ if (!ret_val)
+ ret_val = mbx->ops.read(hw, msg, size);
+out:
+ return ret_val;
+}
+
+/**
+ * e1000_write_posted_mbx - Write a message to the mailbox, wait for ack
+ * @hw: pointer to the HW structure
+ * @msg: The message buffer
+ * @size: Length of buffer
+ *
+ * returns SUCCESS if it successfully copied message into the buffer and
+ * received an ack to that message within delay * timeout period
+ **/
+static s32 e1000_write_posted_mbx(struct e1000_hw *hw, u32 *msg, u16 size)
+{
+ struct e1000_mbx_info *mbx = &hw->mbx;
+ s32 ret_val = -E1000_ERR_MBX;
+
+ /* exit if we either can't write or there isn't a defined timeout */
+ if (!mbx->ops.write || !mbx->timeout)
+ goto out;
+
+ /* send msg*/
+ ret_val = mbx->ops.write(hw, msg, size);
+
+ /* if msg sent wait until we receive an ack */
+ if (!ret_val)
+ ret_val = e1000_poll_for_ack(hw);
+out:
+ return ret_val;
+}
+
+/**
+ * e1000_read_v2p_mailbox - read v2p mailbox
+ * @hw: pointer to the HW structure
+ *
+ * This function is used to read the v2p mailbox without losing the read to
+ * clear status bits.
+ **/
+static u32 e1000_read_v2p_mailbox(struct e1000_hw *hw)
+{
+ u32 v2p_mailbox = er32(V2PMAILBOX(0));
+
+ v2p_mailbox |= hw->dev_spec.vf.v2p_mailbox;
+ hw->dev_spec.vf.v2p_mailbox |= v2p_mailbox & E1000_V2PMAILBOX_R2C_BITS;
+
+ return v2p_mailbox;
+}
+
+/**
+ * e1000_check_for_bit_vf - Determine if a status bit was set
+ * @hw: pointer to the HW structure
+ * @mask: bitmask for bits to be tested and cleared
+ *
+ * This function is used to check for the read to clear bits within
+ * the V2P mailbox.
+ **/
+static s32 e1000_check_for_bit_vf(struct e1000_hw *hw, u32 mask)
+{
+ u32 v2p_mailbox = e1000_read_v2p_mailbox(hw);
+ s32 ret_val = -E1000_ERR_MBX;
+
+ if (v2p_mailbox & mask)
+ ret_val = E1000_SUCCESS;
+
+ hw->dev_spec.vf.v2p_mailbox &= ~mask;
+
+ return ret_val;
+}
+
+/**
+ * e1000_check_for_msg_vf - checks to see if the PF has sent mail
+ * @hw: pointer to the HW structure
+ *
+ * returns SUCCESS if the PF has set the Status bit or else ERR_MBX
+ **/
+static s32 e1000_check_for_msg_vf(struct e1000_hw *hw)
+{
+ s32 ret_val = -E1000_ERR_MBX;
+
+ if (!e1000_check_for_bit_vf(hw, E1000_V2PMAILBOX_PFSTS)) {
+ ret_val = E1000_SUCCESS;
+ hw->mbx.stats.reqs++;
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_check_for_ack_vf - checks to see if the PF has ACK'd
+ * @hw: pointer to the HW structure
+ *
+ * returns SUCCESS if the PF has set the ACK bit or else ERR_MBX
+ **/
+static s32 e1000_check_for_ack_vf(struct e1000_hw *hw)
+{
+ s32 ret_val = -E1000_ERR_MBX;
+
+ if (!e1000_check_for_bit_vf(hw, E1000_V2PMAILBOX_PFACK)) {
+ ret_val = E1000_SUCCESS;
+ hw->mbx.stats.acks++;
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_check_for_rst_vf - checks to see if the PF has reset
+ * @hw: pointer to the HW structure
+ *
+ * returns true if the PF has set the reset done bit or else false
+ **/
+static s32 e1000_check_for_rst_vf(struct e1000_hw *hw)
+{
+ s32 ret_val = -E1000_ERR_MBX;
+
+ if (!e1000_check_for_bit_vf(hw, (E1000_V2PMAILBOX_RSTD |
+ E1000_V2PMAILBOX_RSTI))) {
+ ret_val = E1000_SUCCESS;
+ hw->mbx.stats.rsts++;
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_obtain_mbx_lock_vf - obtain mailbox lock
+ * @hw: pointer to the HW structure
+ *
+ * return SUCCESS if we obtained the mailbox lock
+ **/
+static s32 e1000_obtain_mbx_lock_vf(struct e1000_hw *hw)
+{
+ s32 ret_val = -E1000_ERR_MBX;
+
+ /* Take ownership of the buffer */
+ ew32(V2PMAILBOX(0), E1000_V2PMAILBOX_VFU);
+
+ /* reserve mailbox for vf use */
+ if (e1000_read_v2p_mailbox(hw) & E1000_V2PMAILBOX_VFU)
+ ret_val = E1000_SUCCESS;
+
+ return ret_val;
+}
+
+/**
+ * e1000_write_mbx_vf - Write a message to the mailbox
+ * @hw: pointer to the HW structure
+ * @msg: The message buffer
+ * @size: Length of buffer
+ *
+ * returns SUCCESS if it successfully copied message into the buffer
+ **/
+static s32 e1000_write_mbx_vf(struct e1000_hw *hw, u32 *msg, u16 size)
+{
+ s32 err;
+ u16 i;
+
+ /* lock the mailbox to prevent pf/vf race condition */
+ err = e1000_obtain_mbx_lock_vf(hw);
+ if (err)
+ goto out_no_write;
+
+ /* flush any ack or msg as we are going to overwrite mailbox */
+ e1000_check_for_ack_vf(hw);
+ e1000_check_for_msg_vf(hw);
+
+ /* copy the caller specified message to the mailbox memory buffer */
+ for (i = 0; i < size; i++)
+ array_ew32(VMBMEM(0), i, msg[i]);
+
+ /* update stats */
+ hw->mbx.stats.msgs_tx++;
+
+ /* Drop VFU and interrupt the PF to tell it a message has been sent */
+ ew32(V2PMAILBOX(0), E1000_V2PMAILBOX_REQ);
+
+out_no_write:
+ return err;
+}
+
+/**
+ * e1000_read_mbx_vf - Reads a message from the inbox intended for vf
+ * @hw: pointer to the HW structure
+ * @msg: The message buffer
+ * @size: Length of buffer
+ *
+ * returns SUCCESS if it successfuly read message from buffer
+ **/
+static s32 e1000_read_mbx_vf(struct e1000_hw *hw, u32 *msg, u16 size)
+{
+ s32 err;
+ u16 i;
+
+ /* lock the mailbox to prevent pf/vf race condition */
+ err = e1000_obtain_mbx_lock_vf(hw);
+ if (err)
+ goto out_no_read;
+
+ /* copy the message from the mailbox memory buffer */
+ for (i = 0; i < size; i++)
+ msg[i] = array_er32(VMBMEM(0), i);
+
+ /* Acknowledge receipt and release mailbox, then we're done */
+ ew32(V2PMAILBOX(0), E1000_V2PMAILBOX_ACK);
+
+ /* update stats */
+ hw->mbx.stats.msgs_rx++;
+
+out_no_read:
+ return err;
+}
+
+/**
+ * e1000_init_mbx_params_vf - set initial values for vf mailbox
+ * @hw: pointer to the HW structure
+ *
+ * Initializes the hw->mbx struct to correct values for vf mailbox
+ */
+s32 e1000_init_mbx_params_vf(struct e1000_hw *hw)
+{
+ struct e1000_mbx_info *mbx = &hw->mbx;
+
+ /* start mailbox as timed out and let the reset_hw call set the timeout
+ * value to being communications */
+ mbx->timeout = 0;
+ mbx->usec_delay = E1000_VF_MBX_INIT_DELAY;
+
+ mbx->size = E1000_VFMAILBOX_SIZE;
+
+ mbx->ops.read = e1000_read_mbx_vf;
+ mbx->ops.write = e1000_write_mbx_vf;
+ mbx->ops.read_posted = e1000_read_posted_mbx;
+ mbx->ops.write_posted = e1000_write_posted_mbx;
+ mbx->ops.check_for_msg = e1000_check_for_msg_vf;
+ mbx->ops.check_for_ack = e1000_check_for_ack_vf;
+ mbx->ops.check_for_rst = e1000_check_for_rst_vf;
+
+ mbx->stats.msgs_tx = 0;
+ mbx->stats.msgs_rx = 0;
+ mbx->stats.reqs = 0;
+ mbx->stats.acks = 0;
+ mbx->stats.rsts = 0;
+
+ return E1000_SUCCESS;
+}
+
diff --git a/drivers/net/igbvf/mbx.h b/drivers/net/igbvf/mbx.h
new file mode 100644
index 00000000000..4938609dbfb
--- /dev/null
+++ b/drivers/net/igbvf/mbx.h
@@ -0,0 +1,75 @@
+/*******************************************************************************
+
+ Intel(R) 82576 Virtual Function Linux driver
+ Copyright(c) 1999 - 2009 Intel Corporation.
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms and conditions of the GNU General Public License,
+ version 2, as published by the Free Software Foundation.
+
+ This program is distributed in the hope it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along with
+ this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+ The full GNU General Public License is included in this distribution in
+ the file called "COPYING".
+
+ Contact Information:
+ e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+ Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+#ifndef _E1000_MBX_H_
+#define _E1000_MBX_H_
+
+#include "vf.h"
+
+#define E1000_V2PMAILBOX_REQ 0x00000001 /* Request for PF Ready bit */
+#define E1000_V2PMAILBOX_ACK 0x00000002 /* Ack PF message received */
+#define E1000_V2PMAILBOX_VFU 0x00000004 /* VF owns the mailbox buffer */
+#define E1000_V2PMAILBOX_PFU 0x00000008 /* PF owns the mailbox buffer */
+#define E1000_V2PMAILBOX_PFSTS 0x00000010 /* PF wrote a message in the MB */
+#define E1000_V2PMAILBOX_PFACK 0x00000020 /* PF ack the previous VF msg */
+#define E1000_V2PMAILBOX_RSTI 0x00000040 /* PF has reset indication */
+#define E1000_V2PMAILBOX_RSTD 0x00000080 /* PF has indicated reset done */
+#define E1000_V2PMAILBOX_R2C_BITS 0x000000B0 /* All read to clear bits */
+
+#define E1000_VFMAILBOX_SIZE 16 /* 16 32 bit words - 64 bytes */
+
+/* If it's a E1000_VF_* msg then it originates in the VF and is sent to the
+ * PF. The reverse is true if it is E1000_PF_*.
+ * Message ACK's are the value or'd with 0xF0000000
+ */
+#define E1000_VT_MSGTYPE_ACK 0x80000000 /* Messages below or'd with
+ * this are the ACK */
+#define E1000_VT_MSGTYPE_NACK 0x40000000 /* Messages below or'd with
+ * this are the NACK */
+#define E1000_VT_MSGTYPE_CTS 0x20000000 /* Indicates that VF is still
+ clear to send requests */
+
+/* We have a total wait time of 1s for vf mailbox posted messages */
+#define E1000_VF_MBX_INIT_TIMEOUT 2000 /* retry count for mailbox timeout */
+#define E1000_VF_MBX_INIT_DELAY 500 /* usec delay between retries */
+
+#define E1000_VT_MSGINFO_SHIFT 16
+/* bits 23:16 are used for exra info for certain messages */
+#define E1000_VT_MSGINFO_MASK (0xFF << E1000_VT_MSGINFO_SHIFT)
+
+#define E1000_VF_RESET 0x01 /* VF requests reset */
+#define E1000_VF_SET_MAC_ADDR 0x02 /* VF requests PF to set MAC addr */
+#define E1000_VF_SET_MULTICAST 0x03 /* VF requests PF to set MC addr */
+#define E1000_VF_SET_VLAN 0x04 /* VF requests PF to set VLAN */
+#define E1000_VF_SET_LPE 0x05 /* VF requests PF to set VMOLR.LPE */
+
+#define E1000_PF_CONTROL_MSG 0x0100 /* PF control message */
+
+void e1000_init_mbx_ops_generic(struct e1000_hw *hw);
+s32 e1000_init_mbx_params_vf(struct e1000_hw *);
+
+#endif /* _E1000_MBX_H_ */
diff --git a/drivers/net/igbvf/netdev.c b/drivers/net/igbvf/netdev.c
new file mode 100644
index 00000000000..c5648420ded
--- /dev/null
+++ b/drivers/net/igbvf/netdev.c
@@ -0,0 +1,2919 @@
+/*******************************************************************************
+
+ Intel(R) 82576 Virtual Function Linux driver
+ Copyright(c) 2009 Intel Corporation.
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms and conditions of the GNU General Public License,
+ version 2, as published by the Free Software Foundation.
+
+ This program is distributed in the hope it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along with
+ this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+ The full GNU General Public License is included in this distribution in
+ the file called "COPYING".
+
+ Contact Information:
+ e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+ Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/pci.h>
+#include <linux/vmalloc.h>
+#include <linux/pagemap.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/tcp.h>
+#include <linux/ipv6.h>
+#include <net/checksum.h>
+#include <net/ip6_checksum.h>
+#include <linux/mii.h>
+#include <linux/ethtool.h>
+#include <linux/if_vlan.h>
+#include <linux/pm_qos_params.h>
+
+#include "igbvf.h"
+
+#define DRV_VERSION "1.0.0-k0"
+char igbvf_driver_name[] = "igbvf";
+const char igbvf_driver_version[] = DRV_VERSION;
+static const char igbvf_driver_string[] =
+ "Intel(R) Virtual Function Network Driver";
+static const char igbvf_copyright[] = "Copyright (c) 2009 Intel Corporation.";
+
+static int igbvf_poll(struct napi_struct *napi, int budget);
+
+static struct igbvf_info igbvf_vf_info = {
+ .mac = e1000_vfadapt,
+ .flags = FLAG_HAS_JUMBO_FRAMES
+ | FLAG_RX_CSUM_ENABLED,
+ .pba = 10,
+ .init_ops = e1000_init_function_pointers_vf,
+};
+
+static const struct igbvf_info *igbvf_info_tbl[] = {
+ [board_vf] = &igbvf_vf_info,
+};
+
+/**
+ * igbvf_desc_unused - calculate if we have unused descriptors
+ **/
+static int igbvf_desc_unused(struct igbvf_ring *ring)
+{
+ if (ring->next_to_clean > ring->next_to_use)
+ return ring->next_to_clean - ring->next_to_use - 1;
+
+ return ring->count + ring->next_to_clean - ring->next_to_use - 1;
+}
+
+/**
+ * igbvf_receive_skb - helper function to handle Rx indications
+ * @adapter: board private structure
+ * @status: descriptor status field as written by hardware
+ * @vlan: descriptor vlan field as written by hardware (no le/be conversion)
+ * @skb: pointer to sk_buff to be indicated to stack
+ **/
+static void igbvf_receive_skb(struct igbvf_adapter *adapter,
+ struct net_device *netdev,
+ struct sk_buff *skb,
+ u32 status, u16 vlan)
+{
+ if (adapter->vlgrp && (status & E1000_RXD_STAT_VP))
+ vlan_hwaccel_receive_skb(skb, adapter->vlgrp,
+ le16_to_cpu(vlan) &
+ E1000_RXD_SPC_VLAN_MASK);
+ else
+ netif_receive_skb(skb);
+
+ netdev->last_rx = jiffies;
+}
+
+static inline void igbvf_rx_checksum_adv(struct igbvf_adapter *adapter,
+ u32 status_err, struct sk_buff *skb)
+{
+ skb->ip_summed = CHECKSUM_NONE;
+
+ /* Ignore Checksum bit is set or checksum is disabled through ethtool */
+ if ((status_err & E1000_RXD_STAT_IXSM))
+ return;
+ /* TCP/UDP checksum error bit is set */
+ if (status_err &
+ (E1000_RXDEXT_STATERR_TCPE | E1000_RXDEXT_STATERR_IPE)) {
+ /* let the stack verify checksum errors */
+ adapter->hw_csum_err++;
+ return;
+ }
+ /* It must be a TCP or UDP packet with a valid checksum */
+ if (status_err & (E1000_RXD_STAT_TCPCS | E1000_RXD_STAT_UDPCS))
+ skb->ip_summed = CHECKSUM_UNNECESSARY;
+
+ adapter->hw_csum_good++;
+}
+
+/**
+ * igbvf_alloc_rx_buffers - Replace used receive buffers; packet split
+ * @rx_ring: address of ring structure to repopulate
+ * @cleaned_count: number of buffers to repopulate
+ **/
+static void igbvf_alloc_rx_buffers(struct igbvf_ring *rx_ring,
+ int cleaned_count)
+{
+ struct igbvf_adapter *adapter = rx_ring->adapter;
+ struct net_device *netdev = adapter->netdev;
+ struct pci_dev *pdev = adapter->pdev;
+ union e1000_adv_rx_desc *rx_desc;
+ struct igbvf_buffer *buffer_info;
+ struct sk_buff *skb;
+ unsigned int i;
+ int bufsz;
+
+ i = rx_ring->next_to_use;
+ buffer_info = &rx_ring->buffer_info[i];
+
+ if (adapter->rx_ps_hdr_size)
+ bufsz = adapter->rx_ps_hdr_size;
+ else
+ bufsz = adapter->rx_buffer_len;
+ bufsz += NET_IP_ALIGN;
+
+ while (cleaned_count--) {
+ rx_desc = IGBVF_RX_DESC_ADV(*rx_ring, i);
+
+ if (adapter->rx_ps_hdr_size && !buffer_info->page_dma) {
+ if (!buffer_info->page) {
+ buffer_info->page = alloc_page(GFP_ATOMIC);
+ if (!buffer_info->page) {
+ adapter->alloc_rx_buff_failed++;
+ goto no_buffers;
+ }
+ buffer_info->page_offset = 0;
+ } else {
+ buffer_info->page_offset ^= PAGE_SIZE / 2;
+ }
+ buffer_info->page_dma =
+ pci_map_page(pdev, buffer_info->page,
+ buffer_info->page_offset,
+ PAGE_SIZE / 2,
+ PCI_DMA_FROMDEVICE);
+ }
+
+ if (!buffer_info->skb) {
+ skb = netdev_alloc_skb(netdev, bufsz);
+ if (!skb) {
+ adapter->alloc_rx_buff_failed++;
+ goto no_buffers;
+ }
+
+ /* Make buffer alignment 2 beyond a 16 byte boundary
+ * this will result in a 16 byte aligned IP header after
+ * the 14 byte MAC header is removed
+ */
+ skb_reserve(skb, NET_IP_ALIGN);
+
+ buffer_info->skb = skb;
+ buffer_info->dma = pci_map_single(pdev, skb->data,
+ bufsz,
+ PCI_DMA_FROMDEVICE);
+ }
+ /* Refresh the desc even if buffer_addrs didn't change because
+ * each write-back erases this info. */
+ if (adapter->rx_ps_hdr_size) {
+ rx_desc->read.pkt_addr =
+ cpu_to_le64(buffer_info->page_dma);
+ rx_desc->read.hdr_addr = cpu_to_le64(buffer_info->dma);
+ } else {
+ rx_desc->read.pkt_addr =
+ cpu_to_le64(buffer_info->dma);
+ rx_desc->read.hdr_addr = 0;
+ }
+
+ i++;
+ if (i == rx_ring->count)
+ i = 0;
+ buffer_info = &rx_ring->buffer_info[i];
+ }
+
+no_buffers:
+ if (rx_ring->next_to_use != i) {
+ rx_ring->next_to_use = i;
+ if (i == 0)
+ i = (rx_ring->count - 1);
+ else
+ i--;
+
+ /* Force memory writes to complete before letting h/w
+ * know there are new descriptors to fetch. (Only
+ * applicable for weak-ordered memory model archs,
+ * such as IA-64). */
+ wmb();
+ writel(i, adapter->hw.hw_addr + rx_ring->tail);
+ }
+}
+
+/**
+ * igbvf_clean_rx_irq - Send received data up the network stack; legacy
+ * @adapter: board private structure
+ *
+ * the return value indicates whether actual cleaning was done, there
+ * is no guarantee that everything was cleaned
+ **/
+static bool igbvf_clean_rx_irq(struct igbvf_adapter *adapter,
+ int *work_done, int work_to_do)
+{
+ struct igbvf_ring *rx_ring = adapter->rx_ring;
+ struct net_device *netdev = adapter->netdev;
+ struct pci_dev *pdev = adapter->pdev;
+ union e1000_adv_rx_desc *rx_desc, *next_rxd;
+ struct igbvf_buffer *buffer_info, *next_buffer;
+ struct sk_buff *skb;
+ bool cleaned = false;
+ int cleaned_count = 0;
+ unsigned int total_bytes = 0, total_packets = 0;
+ unsigned int i;
+ u32 length, hlen, staterr;
+
+ i = rx_ring->next_to_clean;
+ rx_desc = IGBVF_RX_DESC_ADV(*rx_ring, i);
+ staterr = le32_to_cpu(rx_desc->wb.upper.status_error);
+
+ while (staterr & E1000_RXD_STAT_DD) {
+ if (*work_done >= work_to_do)
+ break;
+ (*work_done)++;
+
+ buffer_info = &rx_ring->buffer_info[i];
+
+ /* HW will not DMA in data larger than the given buffer, even
+ * if it parses the (NFS, of course) header to be larger. In
+ * that case, it fills the header buffer and spills the rest
+ * into the page.
+ */
+ hlen = (le16_to_cpu(rx_desc->wb.lower.lo_dword.hs_rss.hdr_info) &
+ E1000_RXDADV_HDRBUFLEN_MASK) >> E1000_RXDADV_HDRBUFLEN_SHIFT;
+ if (hlen > adapter->rx_ps_hdr_size)
+ hlen = adapter->rx_ps_hdr_size;
+
+ length = le16_to_cpu(rx_desc->wb.upper.length);
+ cleaned = true;
+ cleaned_count++;
+
+ skb = buffer_info->skb;
+ prefetch(skb->data - NET_IP_ALIGN);
+ buffer_info->skb = NULL;
+ if (!adapter->rx_ps_hdr_size) {
+ pci_unmap_single(pdev, buffer_info->dma,
+ adapter->rx_buffer_len,
+ PCI_DMA_FROMDEVICE);
+ buffer_info->dma = 0;
+ skb_put(skb, length);
+ goto send_up;
+ }
+
+ if (!skb_shinfo(skb)->nr_frags) {
+ pci_unmap_single(pdev, buffer_info->dma,
+ adapter->rx_ps_hdr_size + NET_IP_ALIGN,
+ PCI_DMA_FROMDEVICE);
+ skb_put(skb, hlen);
+ }
+
+ if (length) {
+ pci_unmap_page(pdev, buffer_info->page_dma,
+ PAGE_SIZE / 2,
+ PCI_DMA_FROMDEVICE);
+ buffer_info->page_dma = 0;
+
+ skb_fill_page_desc(skb, skb_shinfo(skb)->nr_frags++,
+ buffer_info->page,
+ buffer_info->page_offset,
+ length);
+
+ if ((adapter->rx_buffer_len > (PAGE_SIZE / 2)) ||
+ (page_count(buffer_info->page) != 1))
+ buffer_info->page = NULL;
+ else
+ get_page(buffer_info->page);
+
+ skb->len += length;
+ skb->data_len += length;
+ skb->truesize += length;
+ }
+send_up:
+ i++;
+ if (i == rx_ring->count)
+ i = 0;
+ next_rxd = IGBVF_RX_DESC_ADV(*rx_ring, i);
+ prefetch(next_rxd);
+ next_buffer = &rx_ring->buffer_info[i];
+
+ if (!(staterr & E1000_RXD_STAT_EOP)) {
+ buffer_info->skb = next_buffer->skb;
+ buffer_info->dma = next_buffer->dma;
+ next_buffer->skb = skb;
+ next_buffer->dma = 0;
+ goto next_desc;
+ }
+
+ if (staterr & E1000_RXDEXT_ERR_FRAME_ERR_MASK) {
+ dev_kfree_skb_irq(skb);
+ goto next_desc;
+ }
+
+ total_bytes += skb->len;
+ total_packets++;
+
+ igbvf_rx_checksum_adv(adapter, staterr, skb);
+
+ skb->protocol = eth_type_trans(skb, netdev);
+
+ igbvf_receive_skb(adapter, netdev, skb, staterr,
+ rx_desc->wb.upper.vlan);
+
+ netdev->last_rx = jiffies;
+
+next_desc:
+ rx_desc->wb.upper.status_error = 0;
+
+ /* return some buffers to hardware, one at a time is too slow */
+ if (cleaned_count >= IGBVF_RX_BUFFER_WRITE) {
+ igbvf_alloc_rx_buffers(rx_ring, cleaned_count);
+ cleaned_count = 0;
+ }
+
+ /* use prefetched values */
+ rx_desc = next_rxd;
+ buffer_info = next_buffer;
+
+ staterr = le32_to_cpu(rx_desc->wb.upper.status_error);
+ }
+
+ rx_ring->next_to_clean = i;
+ cleaned_count = igbvf_desc_unused(rx_ring);
+
+ if (cleaned_count)
+ igbvf_alloc_rx_buffers(rx_ring, cleaned_count);
+
+ adapter->total_rx_packets += total_packets;
+ adapter->total_rx_bytes += total_bytes;
+ adapter->net_stats.rx_bytes += total_bytes;
+ adapter->net_stats.rx_packets += total_packets;
+ return cleaned;
+}
+
+static void igbvf_put_txbuf(struct igbvf_adapter *adapter,
+ struct igbvf_buffer *buffer_info)
+{
+ buffer_info->dma = 0;
+ if (buffer_info->skb) {
+ skb_dma_unmap(&adapter->pdev->dev, buffer_info->skb,
+ DMA_TO_DEVICE);
+ dev_kfree_skb_any(buffer_info->skb);
+ buffer_info->skb = NULL;
+ }
+ buffer_info->time_stamp = 0;
+}
+
+static void igbvf_print_tx_hang(struct igbvf_adapter *adapter)
+{
+ struct igbvf_ring *tx_ring = adapter->tx_ring;
+ unsigned int i = tx_ring->next_to_clean;
+ unsigned int eop = tx_ring->buffer_info[i].next_to_watch;
+ union e1000_adv_tx_desc *eop_desc = IGBVF_TX_DESC_ADV(*tx_ring, eop);
+
+ /* detected Tx unit hang */
+ dev_err(&adapter->pdev->dev,
+ "Detected Tx Unit Hang:\n"
+ " TDH <%x>\n"
+ " TDT <%x>\n"
+ " next_to_use <%x>\n"
+ " next_to_clean <%x>\n"
+ "buffer_info[next_to_clean]:\n"
+ " time_stamp <%lx>\n"
+ " next_to_watch <%x>\n"
+ " jiffies <%lx>\n"
+ " next_to_watch.status <%x>\n",
+ readl(adapter->hw.hw_addr + tx_ring->head),
+ readl(adapter->hw.hw_addr + tx_ring->tail),
+ tx_ring->next_to_use,
+ tx_ring->next_to_clean,
+ tx_ring->buffer_info[eop].time_stamp,
+ eop,
+ jiffies,
+ eop_desc->wb.status);
+}
+
+/**
+ * igbvf_setup_tx_resources - allocate Tx resources (Descriptors)
+ * @adapter: board private structure
+ *
+ * Return 0 on success, negative on failure
+ **/
+int igbvf_setup_tx_resources(struct igbvf_adapter *adapter,
+ struct igbvf_ring *tx_ring)
+{
+ struct pci_dev *pdev = adapter->pdev;
+ int size;
+
+ size = sizeof(struct igbvf_buffer) * tx_ring->count;
+ tx_ring->buffer_info = vmalloc(size);
+ if (!tx_ring->buffer_info)
+ goto err;
+ memset(tx_ring->buffer_info, 0, size);
+
+ /* round up to nearest 4K */
+ tx_ring->size = tx_ring->count * sizeof(union e1000_adv_tx_desc);
+ tx_ring->size = ALIGN(tx_ring->size, 4096);
+
+ tx_ring->desc = pci_alloc_consistent(pdev, tx_ring->size,
+ &tx_ring->dma);
+
+ if (!tx_ring->desc)
+ goto err;
+
+ tx_ring->adapter = adapter;
+ tx_ring->next_to_use = 0;
+ tx_ring->next_to_clean = 0;
+
+ return 0;
+err:
+ vfree(tx_ring->buffer_info);
+ dev_err(&adapter->pdev->dev,
+ "Unable to allocate memory for the transmit descriptor ring\n");
+ return -ENOMEM;
+}
+
+/**
+ * igbvf_setup_rx_resources - allocate Rx resources (Descriptors)
+ * @adapter: board private structure
+ *
+ * Returns 0 on success, negative on failure
+ **/
+int igbvf_setup_rx_resources(struct igbvf_adapter *adapter,
+ struct igbvf_ring *rx_ring)
+{
+ struct pci_dev *pdev = adapter->pdev;
+ int size, desc_len;
+
+ size = sizeof(struct igbvf_buffer) * rx_ring->count;
+ rx_ring->buffer_info = vmalloc(size);
+ if (!rx_ring->buffer_info)
+ goto err;
+ memset(rx_ring->buffer_info, 0, size);
+
+ desc_len = sizeof(union e1000_adv_rx_desc);
+
+ /* Round up to nearest 4K */
+ rx_ring->size = rx_ring->count * desc_len;
+ rx_ring->size = ALIGN(rx_ring->size, 4096);
+
+ rx_ring->desc = pci_alloc_consistent(pdev, rx_ring->size,
+ &rx_ring->dma);
+
+ if (!rx_ring->desc)
+ goto err;
+
+ rx_ring->next_to_clean = 0;
+ rx_ring->next_to_use = 0;
+
+ rx_ring->adapter = adapter;
+
+ return 0;
+
+err:
+ vfree(rx_ring->buffer_info);
+ rx_ring->buffer_info = NULL;
+ dev_err(&adapter->pdev->dev,
+ "Unable to allocate memory for the receive descriptor ring\n");
+ return -ENOMEM;
+}
+
+/**
+ * igbvf_clean_tx_ring - Free Tx Buffers
+ * @tx_ring: ring to be cleaned
+ **/
+static void igbvf_clean_tx_ring(struct igbvf_ring *tx_ring)
+{
+ struct igbvf_adapter *adapter = tx_ring->adapter;
+ struct igbvf_buffer *buffer_info;
+ unsigned long size;
+ unsigned int i;
+
+ if (!tx_ring->buffer_info)
+ return;
+
+ /* Free all the Tx ring sk_buffs */
+ for (i = 0; i < tx_ring->count; i++) {
+ buffer_info = &tx_ring->buffer_info[i];
+ igbvf_put_txbuf(adapter, buffer_info);
+ }
+
+ size = sizeof(struct igbvf_buffer) * tx_ring->count;
+ memset(tx_ring->buffer_info, 0, size);
+
+ /* Zero out the descriptor ring */
+ memset(tx_ring->desc, 0, tx_ring->size);
+
+ tx_ring->next_to_use = 0;
+ tx_ring->next_to_clean = 0;
+
+ writel(0, adapter->hw.hw_addr + tx_ring->head);
+ writel(0, adapter->hw.hw_addr + tx_ring->tail);
+}
+
+/**
+ * igbvf_free_tx_resources - Free Tx Resources per Queue
+ * @tx_ring: ring to free resources from
+ *
+ * Free all transmit software resources
+ **/
+void igbvf_free_tx_resources(struct igbvf_ring *tx_ring)
+{
+ struct pci_dev *pdev = tx_ring->adapter->pdev;
+
+ igbvf_clean_tx_ring(tx_ring);
+
+ vfree(tx_ring->buffer_info);
+ tx_ring->buffer_info = NULL;
+
+ pci_free_consistent(pdev, tx_ring->size, tx_ring->desc, tx_ring->dma);
+
+ tx_ring->desc = NULL;
+}
+
+/**
+ * igbvf_clean_rx_ring - Free Rx Buffers per Queue
+ * @adapter: board private structure
+ **/
+static void igbvf_clean_rx_ring(struct igbvf_ring *rx_ring)
+{
+ struct igbvf_adapter *adapter = rx_ring->adapter;
+ struct igbvf_buffer *buffer_info;
+ struct pci_dev *pdev = adapter->pdev;
+ unsigned long size;
+ unsigned int i;
+
+ if (!rx_ring->buffer_info)
+ return;
+
+ /* Free all the Rx ring sk_buffs */
+ for (i = 0; i < rx_ring->count; i++) {
+ buffer_info = &rx_ring->buffer_info[i];
+ if (buffer_info->dma) {
+ if (adapter->rx_ps_hdr_size){
+ pci_unmap_single(pdev, buffer_info->dma,
+ adapter->rx_ps_hdr_size,
+ PCI_DMA_FROMDEVICE);
+ } else {
+ pci_unmap_single(pdev, buffer_info->dma,
+ adapter->rx_buffer_len,
+ PCI_DMA_FROMDEVICE);
+ }
+ buffer_info->dma = 0;
+ }
+
+ if (buffer_info->skb) {
+ dev_kfree_skb(buffer_info->skb);
+ buffer_info->skb = NULL;
+ }
+
+ if (buffer_info->page) {
+ if (buffer_info->page_dma)
+ pci_unmap_page(pdev, buffer_info->page_dma,
+ PAGE_SIZE / 2,
+ PCI_DMA_FROMDEVICE);
+ put_page(buffer_info->page);
+ buffer_info->page = NULL;
+ buffer_info->page_dma = 0;
+ buffer_info->page_offset = 0;
+ }
+ }
+
+ size = sizeof(struct igbvf_buffer) * rx_ring->count;
+ memset(rx_ring->buffer_info, 0, size);
+
+ /* Zero out the descriptor ring */
+ memset(rx_ring->desc, 0, rx_ring->size);
+
+ rx_ring->next_to_clean = 0;
+ rx_ring->next_to_use = 0;
+
+ writel(0, adapter->hw.hw_addr + rx_ring->head);
+ writel(0, adapter->hw.hw_addr + rx_ring->tail);
+}
+
+/**
+ * igbvf_free_rx_resources - Free Rx Resources
+ * @rx_ring: ring to clean the resources from
+ *
+ * Free all receive software resources
+ **/
+
+void igbvf_free_rx_resources(struct igbvf_ring *rx_ring)
+{
+ struct pci_dev *pdev = rx_ring->adapter->pdev;
+
+ igbvf_clean_rx_ring(rx_ring);
+
+ vfree(rx_ring->buffer_info);
+ rx_ring->buffer_info = NULL;
+
+ dma_free_coherent(&pdev->dev, rx_ring->size, rx_ring->desc,
+ rx_ring->dma);
+ rx_ring->desc = NULL;
+}
+
+/**
+ * igbvf_update_itr - update the dynamic ITR value based on statistics
+ * @adapter: pointer to adapter
+ * @itr_setting: current adapter->itr
+ * @packets: the number of packets during this measurement interval
+ * @bytes: the number of bytes during this measurement interval
+ *
+ * Stores a new ITR value based on packets and byte
+ * counts during the last interrupt. The advantage of per interrupt
+ * computation is faster updates and more accurate ITR for the current
+ * traffic pattern. Constants in this function were computed
+ * based on theoretical maximum wire speed and thresholds were set based
+ * on testing data as well as attempting to minimize response time
+ * while increasing bulk throughput. This functionality is controlled
+ * by the InterruptThrottleRate module parameter.
+ **/
+static unsigned int igbvf_update_itr(struct igbvf_adapter *adapter,
+ u16 itr_setting, int packets,
+ int bytes)
+{
+ unsigned int retval = itr_setting;
+
+ if (packets == 0)
+ goto update_itr_done;
+
+ switch (itr_setting) {
+ case lowest_latency:
+ /* handle TSO and jumbo frames */
+ if (bytes/packets > 8000)
+ retval = bulk_latency;
+ else if ((packets < 5) && (bytes > 512))
+ retval = low_latency;
+ break;
+ case low_latency: /* 50 usec aka 20000 ints/s */
+ if (bytes > 10000) {
+ /* this if handles the TSO accounting */
+ if (bytes/packets > 8000)
+ retval = bulk_latency;
+ else if ((packets < 10) || ((bytes/packets) > 1200))
+ retval = bulk_latency;
+ else if ((packets > 35))
+ retval = lowest_latency;
+ } else if (bytes/packets > 2000) {
+ retval = bulk_latency;
+ } else if (packets <= 2 && bytes < 512) {
+ retval = lowest_latency;
+ }
+ break;
+ case bulk_latency: /* 250 usec aka 4000 ints/s */
+ if (bytes > 25000) {
+ if (packets > 35)
+ retval = low_latency;
+ } else if (bytes < 6000) {
+ retval = low_latency;
+ }
+ break;
+ }
+
+update_itr_done:
+ return retval;
+}
+
+static void igbvf_set_itr(struct igbvf_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u16 current_itr;
+ u32 new_itr = adapter->itr;
+
+ adapter->tx_itr = igbvf_update_itr(adapter, adapter->tx_itr,
+ adapter->total_tx_packets,
+ adapter->total_tx_bytes);
+ /* conservative mode (itr 3) eliminates the lowest_latency setting */
+ if (adapter->itr_setting == 3 && adapter->tx_itr == lowest_latency)
+ adapter->tx_itr = low_latency;
+
+ adapter->rx_itr = igbvf_update_itr(adapter, adapter->rx_itr,
+ adapter->total_rx_packets,
+ adapter->total_rx_bytes);
+ /* conservative mode (itr 3) eliminates the lowest_latency setting */
+ if (adapter->itr_setting == 3 && adapter->rx_itr == lowest_latency)
+ adapter->rx_itr = low_latency;
+
+ current_itr = max(adapter->rx_itr, adapter->tx_itr);
+
+ switch (current_itr) {
+ /* counts and packets in update_itr are dependent on these numbers */
+ case lowest_latency:
+ new_itr = 70000;
+ break;
+ case low_latency:
+ new_itr = 20000; /* aka hwitr = ~200 */
+ break;
+ case bulk_latency:
+ new_itr = 4000;
+ break;
+ default:
+ break;
+ }
+
+ if (new_itr != adapter->itr) {
+ /*
+ * this attempts to bias the interrupt rate towards Bulk
+ * by adding intermediate steps when interrupt rate is
+ * increasing
+ */
+ new_itr = new_itr > adapter->itr ?
+ min(adapter->itr + (new_itr >> 2), new_itr) :
+ new_itr;
+ adapter->itr = new_itr;
+ adapter->rx_ring->itr_val = 1952;
+
+ if (adapter->msix_entries)
+ adapter->rx_ring->set_itr = 1;
+ else
+ ew32(ITR, 1952);
+ }
+}
+
+/**
+ * igbvf_clean_tx_irq - Reclaim resources after transmit completes
+ * @adapter: board private structure
+ * returns true if ring is completely cleaned
+ **/
+static bool igbvf_clean_tx_irq(struct igbvf_ring *tx_ring)
+{
+ struct igbvf_adapter *adapter = tx_ring->adapter;
+ struct e1000_hw *hw = &adapter->hw;
+ struct net_device *netdev = adapter->netdev;
+ struct igbvf_buffer *buffer_info;
+ struct sk_buff *skb;
+ union e1000_adv_tx_desc *tx_desc, *eop_desc;
+ unsigned int total_bytes = 0, total_packets = 0;
+ unsigned int i, eop, count = 0;
+ bool cleaned = false;
+
+ i = tx_ring->next_to_clean;
+ eop = tx_ring->buffer_info[i].next_to_watch;
+ eop_desc = IGBVF_TX_DESC_ADV(*tx_ring, eop);
+
+ while ((eop_desc->wb.status & cpu_to_le32(E1000_TXD_STAT_DD)) &&
+ (count < tx_ring->count)) {
+ for (cleaned = false; !cleaned; count++) {
+ tx_desc = IGBVF_TX_DESC_ADV(*tx_ring, i);
+ buffer_info = &tx_ring->buffer_info[i];
+ cleaned = (i == eop);
+ skb = buffer_info->skb;
+
+ if (skb) {
+ unsigned int segs, bytecount;
+
+ /* gso_segs is currently only valid for tcp */
+ segs = skb_shinfo(skb)->gso_segs ?: 1;
+ /* multiply data chunks by size of headers */
+ bytecount = ((segs - 1) * skb_headlen(skb)) +
+ skb->len;
+ total_packets += segs;
+ total_bytes += bytecount;
+ }
+
+ igbvf_put_txbuf(adapter, buffer_info);
+ tx_desc->wb.status = 0;
+
+ i++;
+ if (i == tx_ring->count)
+ i = 0;
+ }
+ eop = tx_ring->buffer_info[i].next_to_watch;
+ eop_desc = IGBVF_TX_DESC_ADV(*tx_ring, eop);
+ }
+
+ tx_ring->next_to_clean = i;
+
+ if (unlikely(count &&
+ netif_carrier_ok(netdev) &&
+ igbvf_desc_unused(tx_ring) >= IGBVF_TX_QUEUE_WAKE)) {
+ /* Make sure that anybody stopping the queue after this
+ * sees the new next_to_clean.
+ */
+ smp_mb();
+ if (netif_queue_stopped(netdev) &&
+ !(test_bit(__IGBVF_DOWN, &adapter->state))) {
+ netif_wake_queue(netdev);
+ ++adapter->restart_queue;
+ }
+ }
+
+ if (adapter->detect_tx_hung) {
+ /* Detect a transmit hang in hardware, this serializes the
+ * check with the clearing of time_stamp and movement of i */
+ adapter->detect_tx_hung = false;
+ if (tx_ring->buffer_info[i].time_stamp &&
+ time_after(jiffies, tx_ring->buffer_info[i].time_stamp +
+ (adapter->tx_timeout_factor * HZ))
+ && !(er32(STATUS) & E1000_STATUS_TXOFF)) {
+
+ tx_desc = IGBVF_TX_DESC_ADV(*tx_ring, i);
+ /* detected Tx unit hang */
+ igbvf_print_tx_hang(adapter);
+
+ netif_stop_queue(netdev);
+ }
+ }
+ adapter->net_stats.tx_bytes += total_bytes;
+ adapter->net_stats.tx_packets += total_packets;
+ return (count < tx_ring->count);
+}
+
+static irqreturn_t igbvf_msix_other(int irq, void *data)
+{
+ struct net_device *netdev = data;
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+
+ adapter->int_counter1++;
+
+ netif_carrier_off(netdev);
+ hw->mac.get_link_status = 1;
+ if (!test_bit(__IGBVF_DOWN, &adapter->state))
+ mod_timer(&adapter->watchdog_timer, jiffies + 1);
+
+ ew32(EIMS, adapter->eims_other);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t igbvf_intr_msix_tx(int irq, void *data)
+{
+ struct net_device *netdev = data;
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ struct igbvf_ring *tx_ring = adapter->tx_ring;
+
+
+ adapter->total_tx_bytes = 0;
+ adapter->total_tx_packets = 0;
+
+ /* auto mask will automatically reenable the interrupt when we write
+ * EICS */
+ if (!igbvf_clean_tx_irq(tx_ring))
+ /* Ring was not completely cleaned, so fire another interrupt */
+ ew32(EICS, tx_ring->eims_value);
+ else
+ ew32(EIMS, tx_ring->eims_value);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t igbvf_intr_msix_rx(int irq, void *data)
+{
+ struct net_device *netdev = data;
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+
+ adapter->int_counter0++;
+
+ /* Write the ITR value calculated at the end of the
+ * previous interrupt.
+ */
+ if (adapter->rx_ring->set_itr) {
+ writel(adapter->rx_ring->itr_val,
+ adapter->hw.hw_addr + adapter->rx_ring->itr_register);
+ adapter->rx_ring->set_itr = 0;
+ }
+
+ if (napi_schedule_prep(&adapter->rx_ring->napi)) {
+ adapter->total_rx_bytes = 0;
+ adapter->total_rx_packets = 0;
+ __napi_schedule(&adapter->rx_ring->napi);
+ }
+
+ return IRQ_HANDLED;
+}
+
+#define IGBVF_NO_QUEUE -1
+
+static void igbvf_assign_vector(struct igbvf_adapter *adapter, int rx_queue,
+ int tx_queue, int msix_vector)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 ivar, index;
+
+ /* 82576 uses a table-based method for assigning vectors.
+ Each queue has a single entry in the table to which we write
+ a vector number along with a "valid" bit. Sadly, the layout
+ of the table is somewhat counterintuitive. */
+ if (rx_queue > IGBVF_NO_QUEUE) {
+ index = (rx_queue >> 1);
+ ivar = array_er32(IVAR0, index);
+ if (rx_queue & 0x1) {
+ /* vector goes into third byte of register */
+ ivar = ivar & 0xFF00FFFF;
+ ivar |= (msix_vector | E1000_IVAR_VALID) << 16;
+ } else {
+ /* vector goes into low byte of register */
+ ivar = ivar & 0xFFFFFF00;
+ ivar |= msix_vector | E1000_IVAR_VALID;
+ }
+ adapter->rx_ring[rx_queue].eims_value = 1 << msix_vector;
+ array_ew32(IVAR0, index, ivar);
+ }
+ if (tx_queue > IGBVF_NO_QUEUE) {
+ index = (tx_queue >> 1);
+ ivar = array_er32(IVAR0, index);
+ if (tx_queue & 0x1) {
+ /* vector goes into high byte of register */
+ ivar = ivar & 0x00FFFFFF;
+ ivar |= (msix_vector | E1000_IVAR_VALID) << 24;
+ } else {
+ /* vector goes into second byte of register */
+ ivar = ivar & 0xFFFF00FF;
+ ivar |= (msix_vector | E1000_IVAR_VALID) << 8;
+ }
+ adapter->tx_ring[tx_queue].eims_value = 1 << msix_vector;
+ array_ew32(IVAR0, index, ivar);
+ }
+}
+
+/**
+ * igbvf_configure_msix - Configure MSI-X hardware
+ *
+ * igbvf_configure_msix sets up the hardware to properly
+ * generate MSI-X interrupts.
+ **/
+static void igbvf_configure_msix(struct igbvf_adapter *adapter)
+{
+ u32 tmp;
+ struct e1000_hw *hw = &adapter->hw;
+ struct igbvf_ring *tx_ring = adapter->tx_ring;
+ struct igbvf_ring *rx_ring = adapter->rx_ring;
+ int vector = 0;
+
+ adapter->eims_enable_mask = 0;
+
+ igbvf_assign_vector(adapter, IGBVF_NO_QUEUE, 0, vector++);
+ adapter->eims_enable_mask |= tx_ring->eims_value;
+ if (tx_ring->itr_val)
+ writel(tx_ring->itr_val,
+ hw->hw_addr + tx_ring->itr_register);
+ else
+ writel(1952, hw->hw_addr + tx_ring->itr_register);
+
+ igbvf_assign_vector(adapter, 0, IGBVF_NO_QUEUE, vector++);
+ adapter->eims_enable_mask |= rx_ring->eims_value;
+ if (rx_ring->itr_val)
+ writel(rx_ring->itr_val,
+ hw->hw_addr + rx_ring->itr_register);
+ else
+ writel(1952, hw->hw_addr + rx_ring->itr_register);
+
+ /* set vector for other causes, i.e. link changes */
+
+ tmp = (vector++ | E1000_IVAR_VALID);
+
+ ew32(IVAR_MISC, tmp);
+
+ adapter->eims_enable_mask = (1 << (vector)) - 1;
+ adapter->eims_other = 1 << (vector - 1);
+ e1e_flush();
+}
+
+void igbvf_reset_interrupt_capability(struct igbvf_adapter *adapter)
+{
+ if (adapter->msix_entries) {
+ pci_disable_msix(adapter->pdev);
+ kfree(adapter->msix_entries);
+ adapter->msix_entries = NULL;
+ }
+}
+
+/**
+ * igbvf_set_interrupt_capability - set MSI or MSI-X if supported
+ *
+ * Attempt to configure interrupts using the best available
+ * capabilities of the hardware and kernel.
+ **/
+void igbvf_set_interrupt_capability(struct igbvf_adapter *adapter)
+{
+ int err = -ENOMEM;
+ int i;
+
+ /* we allocate 3 vectors, 1 for tx, 1 for rx, one for pf messages */
+ adapter->msix_entries = kcalloc(3, sizeof(struct msix_entry),
+ GFP_KERNEL);
+ if (adapter->msix_entries) {
+ for (i = 0; i < 3; i++)
+ adapter->msix_entries[i].entry = i;
+
+ err = pci_enable_msix(adapter->pdev,
+ adapter->msix_entries, 3);
+ }
+
+ if (err) {
+ /* MSI-X failed */
+ dev_err(&adapter->pdev->dev,
+ "Failed to initialize MSI-X interrupts.\n");
+ igbvf_reset_interrupt_capability(adapter);
+ }
+}
+
+/**
+ * igbvf_request_msix - Initialize MSI-X interrupts
+ *
+ * igbvf_request_msix allocates MSI-X vectors and requests interrupts from the
+ * kernel.
+ **/
+static int igbvf_request_msix(struct igbvf_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+ int err = 0, vector = 0;
+
+ if (strlen(netdev->name) < (IFNAMSIZ - 5)) {
+ sprintf(adapter->tx_ring->name, "%s-tx-0", netdev->name);
+ sprintf(adapter->rx_ring->name, "%s-rx-0", netdev->name);
+ } else {
+ memcpy(adapter->tx_ring->name, netdev->name, IFNAMSIZ);
+ memcpy(adapter->rx_ring->name, netdev->name, IFNAMSIZ);
+ }
+
+ err = request_irq(adapter->msix_entries[vector].vector,
+ &igbvf_intr_msix_tx, 0, adapter->tx_ring->name,
+ netdev);
+ if (err)
+ goto out;
+
+ adapter->tx_ring->itr_register = E1000_EITR(vector);
+ adapter->tx_ring->itr_val = 1952;
+ vector++;
+
+ err = request_irq(adapter->msix_entries[vector].vector,
+ &igbvf_intr_msix_rx, 0, adapter->rx_ring->name,
+ netdev);
+ if (err)
+ goto out;
+
+ adapter->rx_ring->itr_register = E1000_EITR(vector);
+ adapter->rx_ring->itr_val = 1952;
+ vector++;
+
+ err = request_irq(adapter->msix_entries[vector].vector,
+ &igbvf_msix_other, 0, netdev->name, netdev);
+ if (err)
+ goto out;
+
+ igbvf_configure_msix(adapter);
+ return 0;
+out:
+ return err;
+}
+
+/**
+ * igbvf_alloc_queues - Allocate memory for all rings
+ * @adapter: board private structure to initialize
+ **/
+static int __devinit igbvf_alloc_queues(struct igbvf_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+
+ adapter->tx_ring = kzalloc(sizeof(struct igbvf_ring), GFP_KERNEL);
+ if (!adapter->tx_ring)
+ return -ENOMEM;
+
+ adapter->rx_ring = kzalloc(sizeof(struct igbvf_ring), GFP_KERNEL);
+ if (!adapter->rx_ring) {
+ kfree(adapter->tx_ring);
+ return -ENOMEM;
+ }
+
+ netif_napi_add(netdev, &adapter->rx_ring->napi, igbvf_poll, 64);
+
+ return 0;
+}
+
+/**
+ * igbvf_request_irq - initialize interrupts
+ *
+ * Attempts to configure interrupts using the best available
+ * capabilities of the hardware and kernel.
+ **/
+static int igbvf_request_irq(struct igbvf_adapter *adapter)
+{
+ int err = -1;
+
+ /* igbvf supports msi-x only */
+ if (adapter->msix_entries)
+ err = igbvf_request_msix(adapter);
+
+ if (!err)
+ return err;
+
+ dev_err(&adapter->pdev->dev,
+ "Unable to allocate interrupt, Error: %d\n", err);
+
+ return err;
+}
+
+static void igbvf_free_irq(struct igbvf_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+ int vector;
+
+ if (adapter->msix_entries) {
+ for (vector = 0; vector < 3; vector++)
+ free_irq(adapter->msix_entries[vector].vector, netdev);
+ }
+}
+
+/**
+ * igbvf_irq_disable - Mask off interrupt generation on the NIC
+ **/
+static void igbvf_irq_disable(struct igbvf_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+
+ ew32(EIMC, ~0);
+
+ if (adapter->msix_entries)
+ ew32(EIAC, 0);
+}
+
+/**
+ * igbvf_irq_enable - Enable default interrupt generation settings
+ **/
+static void igbvf_irq_enable(struct igbvf_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+
+ ew32(EIAC, adapter->eims_enable_mask);
+ ew32(EIAM, adapter->eims_enable_mask);
+ ew32(EIMS, adapter->eims_enable_mask);
+}
+
+/**
+ * igbvf_poll - NAPI Rx polling callback
+ * @napi: struct associated with this polling callback
+ * @budget: amount of packets driver is allowed to process this poll
+ **/
+static int igbvf_poll(struct napi_struct *napi, int budget)
+{
+ struct igbvf_ring *rx_ring = container_of(napi, struct igbvf_ring, napi);
+ struct igbvf_adapter *adapter = rx_ring->adapter;
+ struct e1000_hw *hw = &adapter->hw;
+ int work_done = 0;
+
+ igbvf_clean_rx_irq(adapter, &work_done, budget);
+
+ /* If not enough Rx work done, exit the polling mode */
+ if (work_done < budget) {
+ napi_complete(napi);
+
+ if (adapter->itr_setting & 3)
+ igbvf_set_itr(adapter);
+
+ if (!test_bit(__IGBVF_DOWN, &adapter->state))
+ ew32(EIMS, adapter->rx_ring->eims_value);
+ }
+
+ return work_done;
+}
+
+/**
+ * igbvf_set_rlpml - set receive large packet maximum length
+ * @adapter: board private structure
+ *
+ * Configure the maximum size of packets that will be received
+ */
+static void igbvf_set_rlpml(struct igbvf_adapter *adapter)
+{
+ int max_frame_size = adapter->max_frame_size;
+ struct e1000_hw *hw = &adapter->hw;
+
+ if (adapter->vlgrp)
+ max_frame_size += VLAN_TAG_SIZE;
+
+ e1000_rlpml_set_vf(hw, max_frame_size);
+}
+
+static void igbvf_vlan_rx_add_vid(struct net_device *netdev, u16 vid)
+{
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+
+ if (hw->mac.ops.set_vfta(hw, vid, true))
+ dev_err(&adapter->pdev->dev, "Failed to add vlan id %d\n", vid);
+}
+
+static void igbvf_vlan_rx_kill_vid(struct net_device *netdev, u16 vid)
+{
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+
+ igbvf_irq_disable(adapter);
+ vlan_group_set_device(adapter->vlgrp, vid, NULL);
+
+ if (!test_bit(__IGBVF_DOWN, &adapter->state))
+ igbvf_irq_enable(adapter);
+
+ if (hw->mac.ops.set_vfta(hw, vid, false))
+ dev_err(&adapter->pdev->dev,
+ "Failed to remove vlan id %d\n", vid);
+}
+
+static void igbvf_vlan_rx_register(struct net_device *netdev,
+ struct vlan_group *grp)
+{
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+
+ adapter->vlgrp = grp;
+}
+
+static void igbvf_restore_vlan(struct igbvf_adapter *adapter)
+{
+ u16 vid;
+
+ if (!adapter->vlgrp)
+ return;
+
+ for (vid = 0; vid < VLAN_GROUP_ARRAY_LEN; vid++) {
+ if (!vlan_group_get_device(adapter->vlgrp, vid))
+ continue;
+ igbvf_vlan_rx_add_vid(adapter->netdev, vid);
+ }
+
+ igbvf_set_rlpml(adapter);
+}
+
+/**
+ * igbvf_configure_tx - Configure Transmit Unit after Reset
+ * @adapter: board private structure
+ *
+ * Configure the Tx unit of the MAC after a reset.
+ **/
+static void igbvf_configure_tx(struct igbvf_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ struct igbvf_ring *tx_ring = adapter->tx_ring;
+ u64 tdba;
+ u32 txdctl, dca_txctrl;
+
+ /* disable transmits */
+ txdctl = er32(TXDCTL(0));
+ ew32(TXDCTL(0), txdctl & ~E1000_TXDCTL_QUEUE_ENABLE);
+ msleep(10);
+
+ /* Setup the HW Tx Head and Tail descriptor pointers */
+ ew32(TDLEN(0), tx_ring->count * sizeof(union e1000_adv_tx_desc));
+ tdba = tx_ring->dma;
+ ew32(TDBAL(0), (tdba & DMA_32BIT_MASK));
+ ew32(TDBAH(0), (tdba >> 32));
+ ew32(TDH(0), 0);
+ ew32(TDT(0), 0);
+ tx_ring->head = E1000_TDH(0);
+ tx_ring->tail = E1000_TDT(0);
+
+ /* Turn off Relaxed Ordering on head write-backs. The writebacks
+ * MUST be delivered in order or it will completely screw up
+ * our bookeeping.
+ */
+ dca_txctrl = er32(DCA_TXCTRL(0));
+ dca_txctrl &= ~E1000_DCA_TXCTRL_TX_WB_RO_EN;
+ ew32(DCA_TXCTRL(0), dca_txctrl);
+
+ /* enable transmits */
+ txdctl |= E1000_TXDCTL_QUEUE_ENABLE;
+ ew32(TXDCTL(0), txdctl);
+
+ /* Setup Transmit Descriptor Settings for eop descriptor */
+ adapter->txd_cmd = E1000_ADVTXD_DCMD_EOP | E1000_ADVTXD_DCMD_IFCS;
+
+ /* enable Report Status bit */
+ adapter->txd_cmd |= E1000_ADVTXD_DCMD_RS;
+
+ adapter->tx_queue_len = adapter->netdev->tx_queue_len;
+}
+
+/**
+ * igbvf_setup_srrctl - configure the receive control registers
+ * @adapter: Board private structure
+ **/
+static void igbvf_setup_srrctl(struct igbvf_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ u32 srrctl = 0;
+
+ srrctl &= ~(E1000_SRRCTL_DESCTYPE_MASK |
+ E1000_SRRCTL_BSIZEHDR_MASK |
+ E1000_SRRCTL_BSIZEPKT_MASK);
+
+ /* Enable queue drop to avoid head of line blocking */
+ srrctl |= E1000_SRRCTL_DROP_EN;
+
+ /* Setup buffer sizes */
+ srrctl |= ALIGN(adapter->rx_buffer_len, 1024) >>
+ E1000_SRRCTL_BSIZEPKT_SHIFT;
+
+ if (adapter->rx_buffer_len < 2048) {
+ adapter->rx_ps_hdr_size = 0;
+ srrctl |= E1000_SRRCTL_DESCTYPE_ADV_ONEBUF;
+ } else {
+ adapter->rx_ps_hdr_size = 128;
+ srrctl |= adapter->rx_ps_hdr_size <<
+ E1000_SRRCTL_BSIZEHDRSIZE_SHIFT;
+ srrctl |= E1000_SRRCTL_DESCTYPE_HDR_SPLIT_ALWAYS;
+ }
+
+ ew32(SRRCTL(0), srrctl);
+}
+
+/**
+ * igbvf_configure_rx - Configure Receive Unit after Reset
+ * @adapter: board private structure
+ *
+ * Configure the Rx unit of the MAC after a reset.
+ **/
+static void igbvf_configure_rx(struct igbvf_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ struct igbvf_ring *rx_ring = adapter->rx_ring;
+ u64 rdba;
+ u32 rdlen, rxdctl;
+
+ /* disable receives */
+ rxdctl = er32(RXDCTL(0));
+ ew32(RXDCTL(0), rxdctl & ~E1000_RXDCTL_QUEUE_ENABLE);
+ msleep(10);
+
+ rdlen = rx_ring->count * sizeof(union e1000_adv_rx_desc);
+
+ /*
+ * Setup the HW Rx Head and Tail Descriptor Pointers and
+ * the Base and Length of the Rx Descriptor Ring
+ */
+ rdba = rx_ring->dma;
+ ew32(RDBAL(0), (rdba & DMA_32BIT_MASK));
+ ew32(RDBAH(0), (rdba >> 32));
+ ew32(RDLEN(0), rx_ring->count * sizeof(union e1000_adv_rx_desc));
+ rx_ring->head = E1000_RDH(0);
+ rx_ring->tail = E1000_RDT(0);
+ ew32(RDH(0), 0);
+ ew32(RDT(0), 0);
+
+ rxdctl |= E1000_RXDCTL_QUEUE_ENABLE;
+ rxdctl &= 0xFFF00000;
+ rxdctl |= IGBVF_RX_PTHRESH;
+ rxdctl |= IGBVF_RX_HTHRESH << 8;
+ rxdctl |= IGBVF_RX_WTHRESH << 16;
+
+ igbvf_set_rlpml(adapter);
+
+ /* enable receives */
+ ew32(RXDCTL(0), rxdctl);
+}
+
+/**
+ * igbvf_set_multi - Multicast and Promiscuous mode set
+ * @netdev: network interface device structure
+ *
+ * The set_multi entry point is called whenever the multicast address
+ * list or the network interface flags are updated. This routine is
+ * responsible for configuring the hardware for proper multicast,
+ * promiscuous mode, and all-multi behavior.
+ **/
+static void igbvf_set_multi(struct net_device *netdev)
+{
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ struct dev_mc_list *mc_ptr;
+ u8 *mta_list = NULL;
+ int i;
+
+ if (netdev->mc_count) {
+ mta_list = kmalloc(netdev->mc_count * 6, GFP_ATOMIC);
+ if (!mta_list) {
+ dev_err(&adapter->pdev->dev,
+ "failed to allocate multicast filter list\n");
+ return;
+ }
+ }
+
+ /* prepare a packed array of only addresses. */
+ mc_ptr = netdev->mc_list;
+
+ for (i = 0; i < netdev->mc_count; i++) {
+ if (!mc_ptr)
+ break;
+ memcpy(mta_list + (i*ETH_ALEN), mc_ptr->dmi_addr,
+ ETH_ALEN);
+ mc_ptr = mc_ptr->next;
+ }
+
+ hw->mac.ops.update_mc_addr_list(hw, mta_list, i, 0, 0);
+ kfree(mta_list);
+}
+
+/**
+ * igbvf_configure - configure the hardware for Rx and Tx
+ * @adapter: private board structure
+ **/
+static void igbvf_configure(struct igbvf_adapter *adapter)
+{
+ igbvf_set_multi(adapter->netdev);
+
+ igbvf_restore_vlan(adapter);
+
+ igbvf_configure_tx(adapter);
+ igbvf_setup_srrctl(adapter);
+ igbvf_configure_rx(adapter);
+ igbvf_alloc_rx_buffers(adapter->rx_ring,
+ igbvf_desc_unused(adapter->rx_ring));
+}
+
+/* igbvf_reset - bring the hardware into a known good state
+ *
+ * This function boots the hardware and enables some settings that
+ * require a configuration cycle of the hardware - those cannot be
+ * set/changed during runtime. After reset the device needs to be
+ * properly configured for Rx, Tx etc.
+ */
+void igbvf_reset(struct igbvf_adapter *adapter)
+{
+ struct e1000_mac_info *mac = &adapter->hw.mac;
+ struct net_device *netdev = adapter->netdev;
+ struct e1000_hw *hw = &adapter->hw;
+
+ /* Allow time for pending master requests to run */
+ if (mac->ops.reset_hw(hw))
+ dev_err(&adapter->pdev->dev, "PF still resetting\n");
+
+ mac->ops.init_hw(hw);
+
+ if (is_valid_ether_addr(adapter->hw.mac.addr)) {
+ memcpy(netdev->dev_addr, adapter->hw.mac.addr,
+ netdev->addr_len);
+ memcpy(netdev->perm_addr, adapter->hw.mac.addr,
+ netdev->addr_len);
+ }
+}
+
+int igbvf_up(struct igbvf_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+
+ /* hardware has been reset, we need to reload some things */
+ igbvf_configure(adapter);
+
+ clear_bit(__IGBVF_DOWN, &adapter->state);
+
+ napi_enable(&adapter->rx_ring->napi);
+ if (adapter->msix_entries)
+ igbvf_configure_msix(adapter);
+
+ /* Clear any pending interrupts. */
+ er32(EICR);
+ igbvf_irq_enable(adapter);
+
+ /* start the watchdog */
+ hw->mac.get_link_status = 1;
+ mod_timer(&adapter->watchdog_timer, jiffies + 1);
+
+
+ return 0;
+}
+
+void igbvf_down(struct igbvf_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+ struct e1000_hw *hw = &adapter->hw;
+ u32 rxdctl, txdctl;
+
+ /*
+ * signal that we're down so the interrupt handler does not
+ * reschedule our watchdog timer
+ */
+ set_bit(__IGBVF_DOWN, &adapter->state);
+
+ /* disable receives in the hardware */
+ rxdctl = er32(RXDCTL(0));
+ ew32(RXDCTL(0), rxdctl & ~E1000_RXDCTL_QUEUE_ENABLE);
+
+ netif_stop_queue(netdev);
+
+ /* disable transmits in the hardware */
+ txdctl = er32(TXDCTL(0));
+ ew32(TXDCTL(0), txdctl & ~E1000_TXDCTL_QUEUE_ENABLE);
+
+ /* flush both disables and wait for them to finish */
+ e1e_flush();
+ msleep(10);
+
+ napi_disable(&adapter->rx_ring->napi);
+
+ igbvf_irq_disable(adapter);
+
+ del_timer_sync(&adapter->watchdog_timer);
+
+ netdev->tx_queue_len = adapter->tx_queue_len;
+ netif_carrier_off(netdev);
+
+ /* record the stats before reset*/
+ igbvf_update_stats(adapter);
+
+ adapter->link_speed = 0;
+ adapter->link_duplex = 0;
+
+ igbvf_reset(adapter);
+ igbvf_clean_tx_ring(adapter->tx_ring);
+ igbvf_clean_rx_ring(adapter->rx_ring);
+}
+
+void igbvf_reinit_locked(struct igbvf_adapter *adapter)
+{
+ might_sleep();
+ while (test_and_set_bit(__IGBVF_RESETTING, &adapter->state))
+ msleep(1);
+ igbvf_down(adapter);
+ igbvf_up(adapter);
+ clear_bit(__IGBVF_RESETTING, &adapter->state);
+}
+
+/**
+ * igbvf_sw_init - Initialize general software structures (struct igbvf_adapter)
+ * @adapter: board private structure to initialize
+ *
+ * igbvf_sw_init initializes the Adapter private data structure.
+ * Fields are initialized based on PCI device information and
+ * OS network device settings (MTU size).
+ **/
+static int __devinit igbvf_sw_init(struct igbvf_adapter *adapter)
+{
+ struct net_device *netdev = adapter->netdev;
+ s32 rc;
+
+ adapter->rx_buffer_len = ETH_FRAME_LEN + VLAN_HLEN + ETH_FCS_LEN;
+ adapter->rx_ps_hdr_size = 0;
+ adapter->max_frame_size = netdev->mtu + ETH_HLEN + ETH_FCS_LEN;
+ adapter->min_frame_size = ETH_ZLEN + ETH_FCS_LEN;
+
+ adapter->tx_int_delay = 8;
+ adapter->tx_abs_int_delay = 32;
+ adapter->rx_int_delay = 0;
+ adapter->rx_abs_int_delay = 8;
+ adapter->itr_setting = 3;
+ adapter->itr = 20000;
+
+ /* Set various function pointers */
+ adapter->ei->init_ops(&adapter->hw);
+
+ rc = adapter->hw.mac.ops.init_params(&adapter->hw);
+ if (rc)
+ return rc;
+
+ rc = adapter->hw.mbx.ops.init_params(&adapter->hw);
+ if (rc)
+ return rc;
+
+ igbvf_set_interrupt_capability(adapter);
+
+ if (igbvf_alloc_queues(adapter))
+ return -ENOMEM;
+
+ spin_lock_init(&adapter->tx_queue_lock);
+
+ /* Explicitly disable IRQ since the NIC can be in any state. */
+ igbvf_irq_disable(adapter);
+
+ spin_lock_init(&adapter->stats_lock);
+
+ set_bit(__IGBVF_DOWN, &adapter->state);
+ return 0;
+}
+
+static void igbvf_initialize_last_counter_stats(struct igbvf_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+
+ adapter->stats.last_gprc = er32(VFGPRC);
+ adapter->stats.last_gorc = er32(VFGORC);
+ adapter->stats.last_gptc = er32(VFGPTC);
+ adapter->stats.last_gotc = er32(VFGOTC);
+ adapter->stats.last_mprc = er32(VFMPRC);
+ adapter->stats.last_gotlbc = er32(VFGOTLBC);
+ adapter->stats.last_gptlbc = er32(VFGPTLBC);
+ adapter->stats.last_gorlbc = er32(VFGORLBC);
+ adapter->stats.last_gprlbc = er32(VFGPRLBC);
+
+ adapter->stats.base_gprc = er32(VFGPRC);
+ adapter->stats.base_gorc = er32(VFGORC);
+ adapter->stats.base_gptc = er32(VFGPTC);
+ adapter->stats.base_gotc = er32(VFGOTC);
+ adapter->stats.base_mprc = er32(VFMPRC);
+ adapter->stats.base_gotlbc = er32(VFGOTLBC);
+ adapter->stats.base_gptlbc = er32(VFGPTLBC);
+ adapter->stats.base_gorlbc = er32(VFGORLBC);
+ adapter->stats.base_gprlbc = er32(VFGPRLBC);
+}
+
+/**
+ * igbvf_open - Called when a network interface is made active
+ * @netdev: network interface device structure
+ *
+ * Returns 0 on success, negative value on failure
+ *
+ * The open entry point is called when a network interface is made
+ * active by the system (IFF_UP). At this point all resources needed
+ * for transmit and receive operations are allocated, the interrupt
+ * handler is registered with the OS, the watchdog timer is started,
+ * and the stack is notified that the interface is ready.
+ **/
+static int igbvf_open(struct net_device *netdev)
+{
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ int err;
+
+ /* disallow open during test */
+ if (test_bit(__IGBVF_TESTING, &adapter->state))
+ return -EBUSY;
+
+ /* allocate transmit descriptors */
+ err = igbvf_setup_tx_resources(adapter, adapter->tx_ring);
+ if (err)
+ goto err_setup_tx;
+
+ /* allocate receive descriptors */
+ err = igbvf_setup_rx_resources(adapter, adapter->rx_ring);
+ if (err)
+ goto err_setup_rx;
+
+ /*
+ * before we allocate an interrupt, we must be ready to handle it.
+ * Setting DEBUG_SHIRQ in the kernel makes it fire an interrupt
+ * as soon as we call pci_request_irq, so we have to setup our
+ * clean_rx handler before we do so.
+ */
+ igbvf_configure(adapter);
+
+ err = igbvf_request_irq(adapter);
+ if (err)
+ goto err_req_irq;
+
+ /* From here on the code is the same as igbvf_up() */
+ clear_bit(__IGBVF_DOWN, &adapter->state);
+
+ napi_enable(&adapter->rx_ring->napi);
+
+ /* clear any pending interrupts */
+ er32(EICR);
+
+ igbvf_irq_enable(adapter);
+
+ /* start the watchdog */
+ hw->mac.get_link_status = 1;
+ mod_timer(&adapter->watchdog_timer, jiffies + 1);
+
+ return 0;
+
+err_req_irq:
+ igbvf_free_rx_resources(adapter->rx_ring);
+err_setup_rx:
+ igbvf_free_tx_resources(adapter->tx_ring);
+err_setup_tx:
+ igbvf_reset(adapter);
+
+ return err;
+}
+
+/**
+ * igbvf_close - Disables a network interface
+ * @netdev: network interface device structure
+ *
+ * Returns 0, this is not allowed to fail
+ *
+ * The close entry point is called when an interface is de-activated
+ * by the OS. The hardware is still under the drivers control, but
+ * needs to be disabled. A global MAC reset is issued to stop the
+ * hardware, and all transmit and receive resources are freed.
+ **/
+static int igbvf_close(struct net_device *netdev)
+{
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+
+ WARN_ON(test_bit(__IGBVF_RESETTING, &adapter->state));
+ igbvf_down(adapter);
+
+ igbvf_free_irq(adapter);
+
+ igbvf_free_tx_resources(adapter->tx_ring);
+ igbvf_free_rx_resources(adapter->rx_ring);
+
+ return 0;
+}
+/**
+ * igbvf_set_mac - Change the Ethernet Address of the NIC
+ * @netdev: network interface device structure
+ * @p: pointer to an address structure
+ *
+ * Returns 0 on success, negative on failure
+ **/
+static int igbvf_set_mac(struct net_device *netdev, void *p)
+{
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+ struct sockaddr *addr = p;
+
+ if (!is_valid_ether_addr(addr->sa_data))
+ return -EADDRNOTAVAIL;
+
+ memcpy(hw->mac.addr, addr->sa_data, netdev->addr_len);
+
+ hw->mac.ops.rar_set(hw, hw->mac.addr, 0);
+
+ if (memcmp(addr->sa_data, hw->mac.addr, 6))
+ return -EADDRNOTAVAIL;
+
+ memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
+
+ return 0;
+}
+
+#define UPDATE_VF_COUNTER(reg, name) \
+ { \
+ u32 current_counter = er32(reg); \
+ if (current_counter < adapter->stats.last_##name) \
+ adapter->stats.name += 0x100000000LL; \
+ adapter->stats.last_##name = current_counter; \
+ adapter->stats.name &= 0xFFFFFFFF00000000LL; \
+ adapter->stats.name |= current_counter; \
+ }
+
+/**
+ * igbvf_update_stats - Update the board statistics counters
+ * @adapter: board private structure
+**/
+void igbvf_update_stats(struct igbvf_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ struct pci_dev *pdev = adapter->pdev;
+
+ /*
+ * Prevent stats update while adapter is being reset, link is down
+ * or if the pci connection is down.
+ */
+ if (adapter->link_speed == 0)
+ return;
+
+ if (test_bit(__IGBVF_RESETTING, &adapter->state))
+ return;
+
+ if (pci_channel_offline(pdev))
+ return;
+
+ UPDATE_VF_COUNTER(VFGPRC, gprc);
+ UPDATE_VF_COUNTER(VFGORC, gorc);
+ UPDATE_VF_COUNTER(VFGPTC, gptc);
+ UPDATE_VF_COUNTER(VFGOTC, gotc);
+ UPDATE_VF_COUNTER(VFMPRC, mprc);
+ UPDATE_VF_COUNTER(VFGOTLBC, gotlbc);
+ UPDATE_VF_COUNTER(VFGPTLBC, gptlbc);
+ UPDATE_VF_COUNTER(VFGORLBC, gorlbc);
+ UPDATE_VF_COUNTER(VFGPRLBC, gprlbc);
+
+ /* Fill out the OS statistics structure */
+ adapter->net_stats.multicast = adapter->stats.mprc;
+}
+
+static void igbvf_print_link_info(struct igbvf_adapter *adapter)
+{
+ dev_info(&adapter->pdev->dev, "Link is Up %d Mbps %s\n",
+ adapter->link_speed,
+ ((adapter->link_duplex == FULL_DUPLEX) ?
+ "Full Duplex" : "Half Duplex"));
+}
+
+static bool igbvf_has_link(struct igbvf_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ s32 ret_val = E1000_SUCCESS;
+ bool link_active;
+
+ ret_val = hw->mac.ops.check_for_link(hw);
+ link_active = !hw->mac.get_link_status;
+
+ /* if check for link returns error we will need to reset */
+ if (ret_val)
+ schedule_work(&adapter->reset_task);
+
+ return link_active;
+}
+
+/**
+ * igbvf_watchdog - Timer Call-back
+ * @data: pointer to adapter cast into an unsigned long
+ **/
+static void igbvf_watchdog(unsigned long data)
+{
+ struct igbvf_adapter *adapter = (struct igbvf_adapter *) data;
+
+ /* Do the rest outside of interrupt context */
+ schedule_work(&adapter->watchdog_task);
+}
+
+static void igbvf_watchdog_task(struct work_struct *work)
+{
+ struct igbvf_adapter *adapter = container_of(work,
+ struct igbvf_adapter,
+ watchdog_task);
+ struct net_device *netdev = adapter->netdev;
+ struct e1000_mac_info *mac = &adapter->hw.mac;
+ struct igbvf_ring *tx_ring = adapter->tx_ring;
+ struct e1000_hw *hw = &adapter->hw;
+ u32 link;
+ int tx_pending = 0;
+
+ link = igbvf_has_link(adapter);
+
+ if (link) {
+ if (!netif_carrier_ok(netdev)) {
+ bool txb2b = 1;
+
+ mac->ops.get_link_up_info(&adapter->hw,
+ &adapter->link_speed,
+ &adapter->link_duplex);
+ igbvf_print_link_info(adapter);
+
+ /*
+ * tweak tx_queue_len according to speed/duplex
+ * and adjust the timeout factor
+ */
+ netdev->tx_queue_len = adapter->tx_queue_len;
+ adapter->tx_timeout_factor = 1;
+ switch (adapter->link_speed) {
+ case SPEED_10:
+ txb2b = 0;
+ netdev->tx_queue_len = 10;
+ adapter->tx_timeout_factor = 16;
+ break;
+ case SPEED_100:
+ txb2b = 0;
+ netdev->tx_queue_len = 100;
+ /* maybe add some timeout factor ? */
+ break;
+ }
+
+ netif_carrier_on(netdev);
+ netif_wake_queue(netdev);
+ }
+ } else {
+ if (netif_carrier_ok(netdev)) {
+ adapter->link_speed = 0;
+ adapter->link_duplex = 0;
+ dev_info(&adapter->pdev->dev, "Link is Down\n");
+ netif_carrier_off(netdev);
+ netif_stop_queue(netdev);
+ }
+ }
+
+ if (netif_carrier_ok(netdev)) {
+ igbvf_update_stats(adapter);
+ } else {
+ tx_pending = (igbvf_desc_unused(tx_ring) + 1 <
+ tx_ring->count);
+ if (tx_pending) {
+ /*
+ * We've lost link, so the controller stops DMA,
+ * but we've got queued Tx work that's never going
+ * to get done, so reset controller to flush Tx.
+ * (Do the reset outside of interrupt context).
+ */
+ adapter->tx_timeout_count++;
+ schedule_work(&adapter->reset_task);
+ }
+ }
+
+ /* Cause software interrupt to ensure Rx ring is cleaned */
+ ew32(EICS, adapter->rx_ring->eims_value);
+
+ /* Force detection of hung controller every watchdog period */
+ adapter->detect_tx_hung = 1;
+
+ /* Reset the timer */
+ if (!test_bit(__IGBVF_DOWN, &adapter->state))
+ mod_timer(&adapter->watchdog_timer,
+ round_jiffies(jiffies + (2 * HZ)));
+}
+
+#define IGBVF_TX_FLAGS_CSUM 0x00000001
+#define IGBVF_TX_FLAGS_VLAN 0x00000002
+#define IGBVF_TX_FLAGS_TSO 0x00000004
+#define IGBVF_TX_FLAGS_IPV4 0x00000008
+#define IGBVF_TX_FLAGS_VLAN_MASK 0xffff0000
+#define IGBVF_TX_FLAGS_VLAN_SHIFT 16
+
+static int igbvf_tso(struct igbvf_adapter *adapter,
+ struct igbvf_ring *tx_ring,
+ struct sk_buff *skb, u32 tx_flags, u8 *hdr_len)
+{
+ struct e1000_adv_tx_context_desc *context_desc;
+ unsigned int i;
+ int err;
+ struct igbvf_buffer *buffer_info;
+ u32 info = 0, tu_cmd = 0;
+ u32 mss_l4len_idx, l4len;
+ *hdr_len = 0;
+
+ if (skb_header_cloned(skb)) {
+ err = pskb_expand_head(skb, 0, 0, GFP_ATOMIC);
+ if (err) {
+ dev_err(&adapter->pdev->dev,
+ "igbvf_tso returning an error\n");
+ return err;
+ }
+ }
+
+ l4len = tcp_hdrlen(skb);
+ *hdr_len += l4len;
+
+ if (skb->protocol == htons(ETH_P_IP)) {
+ struct iphdr *iph = ip_hdr(skb);
+ iph->tot_len = 0;
+ iph->check = 0;
+ tcp_hdr(skb)->check = ~csum_tcpudp_magic(iph->saddr,
+ iph->daddr, 0,
+ IPPROTO_TCP,
+ 0);
+ } else if (skb_shinfo(skb)->gso_type == SKB_GSO_TCPV6) {
+ ipv6_hdr(skb)->payload_len = 0;
+ tcp_hdr(skb)->check = ~csum_ipv6_magic(&ipv6_hdr(skb)->saddr,
+ &ipv6_hdr(skb)->daddr,
+ 0, IPPROTO_TCP, 0);
+ }
+
+ i = tx_ring->next_to_use;
+
+ buffer_info = &tx_ring->buffer_info[i];
+ context_desc = IGBVF_TX_CTXTDESC_ADV(*tx_ring, i);
+ /* VLAN MACLEN IPLEN */
+ if (tx_flags & IGBVF_TX_FLAGS_VLAN)
+ info |= (tx_flags & IGBVF_TX_FLAGS_VLAN_MASK);
+ info |= (skb_network_offset(skb) << E1000_ADVTXD_MACLEN_SHIFT);
+ *hdr_len += skb_network_offset(skb);
+ info |= (skb_transport_header(skb) - skb_network_header(skb));
+ *hdr_len += (skb_transport_header(skb) - skb_network_header(skb));
+ context_desc->vlan_macip_lens = cpu_to_le32(info);
+
+ /* ADV DTYP TUCMD MKRLOC/ISCSIHEDLEN */
+ tu_cmd |= (E1000_TXD_CMD_DEXT | E1000_ADVTXD_DTYP_CTXT);
+
+ if (skb->protocol == htons(ETH_P_IP))
+ tu_cmd |= E1000_ADVTXD_TUCMD_IPV4;
+ tu_cmd |= E1000_ADVTXD_TUCMD_L4T_TCP;
+
+ context_desc->type_tucmd_mlhl = cpu_to_le32(tu_cmd);
+
+ /* MSS L4LEN IDX */
+ mss_l4len_idx = (skb_shinfo(skb)->gso_size << E1000_ADVTXD_MSS_SHIFT);
+ mss_l4len_idx |= (l4len << E1000_ADVTXD_L4LEN_SHIFT);
+
+ context_desc->mss_l4len_idx = cpu_to_le32(mss_l4len_idx);
+ context_desc->seqnum_seed = 0;
+
+ buffer_info->time_stamp = jiffies;
+ buffer_info->next_to_watch = i;
+ buffer_info->dma = 0;
+ i++;
+ if (i == tx_ring->count)
+ i = 0;
+
+ tx_ring->next_to_use = i;
+
+ return true;
+}
+
+static inline bool igbvf_tx_csum(struct igbvf_adapter *adapter,
+ struct igbvf_ring *tx_ring,
+ struct sk_buff *skb, u32 tx_flags)
+{
+ struct e1000_adv_tx_context_desc *context_desc;
+ unsigned int i;
+ struct igbvf_buffer *buffer_info;
+ u32 info = 0, tu_cmd = 0;
+
+ if ((skb->ip_summed == CHECKSUM_PARTIAL) ||
+ (tx_flags & IGBVF_TX_FLAGS_VLAN)) {
+ i = tx_ring->next_to_use;
+ buffer_info = &tx_ring->buffer_info[i];
+ context_desc = IGBVF_TX_CTXTDESC_ADV(*tx_ring, i);
+
+ if (tx_flags & IGBVF_TX_FLAGS_VLAN)
+ info |= (tx_flags & IGBVF_TX_FLAGS_VLAN_MASK);
+
+ info |= (skb_network_offset(skb) << E1000_ADVTXD_MACLEN_SHIFT);
+ if (skb->ip_summed == CHECKSUM_PARTIAL)
+ info |= (skb_transport_header(skb) -
+ skb_network_header(skb));
+
+
+ context_desc->vlan_macip_lens = cpu_to_le32(info);
+
+ tu_cmd |= (E1000_TXD_CMD_DEXT | E1000_ADVTXD_DTYP_CTXT);
+
+ if (skb->ip_summed == CHECKSUM_PARTIAL) {
+ switch (skb->protocol) {
+ case __constant_htons(ETH_P_IP):
+ tu_cmd |= E1000_ADVTXD_TUCMD_IPV4;
+ if (ip_hdr(skb)->protocol == IPPROTO_TCP)
+ tu_cmd |= E1000_ADVTXD_TUCMD_L4T_TCP;
+ break;
+ case __constant_htons(ETH_P_IPV6):
+ if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP)
+ tu_cmd |= E1000_ADVTXD_TUCMD_L4T_TCP;
+ break;
+ default:
+ break;
+ }
+ }
+
+ context_desc->type_tucmd_mlhl = cpu_to_le32(tu_cmd);
+ context_desc->seqnum_seed = 0;
+ context_desc->mss_l4len_idx = 0;
+
+ buffer_info->time_stamp = jiffies;
+ buffer_info->next_to_watch = i;
+ buffer_info->dma = 0;
+ i++;
+ if (i == tx_ring->count)
+ i = 0;
+ tx_ring->next_to_use = i;
+
+ return true;
+ }
+
+ return false;
+}
+
+static int igbvf_maybe_stop_tx(struct net_device *netdev, int size)
+{
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+
+ /* there is enough descriptors then we don't need to worry */
+ if (igbvf_desc_unused(adapter->tx_ring) >= size)
+ return 0;
+
+ netif_stop_queue(netdev);
+
+ smp_mb();
+
+ /* We need to check again just in case room has been made available */
+ if (igbvf_desc_unused(adapter->tx_ring) < size)
+ return -EBUSY;
+
+ netif_wake_queue(netdev);
+
+ ++adapter->restart_queue;
+ return 0;
+}
+
+#define IGBVF_MAX_TXD_PWR 16
+#define IGBVF_MAX_DATA_PER_TXD (1 << IGBVF_MAX_TXD_PWR)
+
+static inline int igbvf_tx_map_adv(struct igbvf_adapter *adapter,
+ struct igbvf_ring *tx_ring,
+ struct sk_buff *skb,
+ unsigned int first)
+{
+ struct igbvf_buffer *buffer_info;
+ unsigned int len = skb_headlen(skb);
+ unsigned int count = 0, i;
+ unsigned int f;
+ dma_addr_t *map;
+
+ i = tx_ring->next_to_use;
+
+ if (skb_dma_map(&adapter->pdev->dev, skb, DMA_TO_DEVICE)) {
+ dev_err(&adapter->pdev->dev, "TX DMA map failed\n");
+ return 0;
+ }
+
+ map = skb_shinfo(skb)->dma_maps;
+
+ buffer_info = &tx_ring->buffer_info[i];
+ BUG_ON(len >= IGBVF_MAX_DATA_PER_TXD);
+ buffer_info->length = len;
+ /* set time_stamp *before* dma to help avoid a possible race */
+ buffer_info->time_stamp = jiffies;
+ buffer_info->next_to_watch = i;
+ buffer_info->dma = map[count];
+ count++;
+
+ for (f = 0; f < skb_shinfo(skb)->nr_frags; f++) {
+ struct skb_frag_struct *frag;
+
+ i++;
+ if (i == tx_ring->count)
+ i = 0;
+
+ frag = &skb_shinfo(skb)->frags[f];
+ len = frag->size;
+
+ buffer_info = &tx_ring->buffer_info[i];
+ BUG_ON(len >= IGBVF_MAX_DATA_PER_TXD);
+ buffer_info->length = len;
+ buffer_info->time_stamp = jiffies;
+ buffer_info->next_to_watch = i;
+ buffer_info->dma = map[count];
+ count++;
+ }
+
+ tx_ring->buffer_info[i].skb = skb;
+ tx_ring->buffer_info[first].next_to_watch = i;
+
+ return count;
+}
+
+static inline void igbvf_tx_queue_adv(struct igbvf_adapter *adapter,
+ struct igbvf_ring *tx_ring,
+ int tx_flags, int count, u32 paylen,
+ u8 hdr_len)
+{
+ union e1000_adv_tx_desc *tx_desc = NULL;
+ struct igbvf_buffer *buffer_info;
+ u32 olinfo_status = 0, cmd_type_len;
+ unsigned int i;
+
+ cmd_type_len = (E1000_ADVTXD_DTYP_DATA | E1000_ADVTXD_DCMD_IFCS |
+ E1000_ADVTXD_DCMD_DEXT);
+
+ if (tx_flags & IGBVF_TX_FLAGS_VLAN)
+ cmd_type_len |= E1000_ADVTXD_DCMD_VLE;
+
+ if (tx_flags & IGBVF_TX_FLAGS_TSO) {
+ cmd_type_len |= E1000_ADVTXD_DCMD_TSE;
+
+ /* insert tcp checksum */
+ olinfo_status |= E1000_TXD_POPTS_TXSM << 8;
+
+ /* insert ip checksum */
+ if (tx_flags & IGBVF_TX_FLAGS_IPV4)
+ olinfo_status |= E1000_TXD_POPTS_IXSM << 8;
+
+ } else if (tx_flags & IGBVF_TX_FLAGS_CSUM) {
+ olinfo_status |= E1000_TXD_POPTS_TXSM << 8;
+ }
+
+ olinfo_status |= ((paylen - hdr_len) << E1000_ADVTXD_PAYLEN_SHIFT);
+
+ i = tx_ring->next_to_use;
+ while (count--) {
+ buffer_info = &tx_ring->buffer_info[i];
+ tx_desc = IGBVF_TX_DESC_ADV(*tx_ring, i);
+ tx_desc->read.buffer_addr = cpu_to_le64(buffer_info->dma);
+ tx_desc->read.cmd_type_len =
+ cpu_to_le32(cmd_type_len | buffer_info->length);
+ tx_desc->read.olinfo_status = cpu_to_le32(olinfo_status);
+ i++;
+ if (i == tx_ring->count)
+ i = 0;
+ }
+
+ tx_desc->read.cmd_type_len |= cpu_to_le32(adapter->txd_cmd);
+ /* Force memory writes to complete before letting h/w
+ * know there are new descriptors to fetch. (Only
+ * applicable for weak-ordered memory model archs,
+ * such as IA-64). */
+ wmb();
+
+ tx_ring->next_to_use = i;
+ writel(i, adapter->hw.hw_addr + tx_ring->tail);
+ /* we need this if more than one processor can write to our tail
+ * at a time, it syncronizes IO on IA64/Altix systems */
+ mmiowb();
+}
+
+static int igbvf_xmit_frame_ring_adv(struct sk_buff *skb,
+ struct net_device *netdev,
+ struct igbvf_ring *tx_ring)
+{
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+ unsigned int first, tx_flags = 0;
+ u8 hdr_len = 0;
+ int count = 0;
+ int tso = 0;
+
+ if (test_bit(__IGBVF_DOWN, &adapter->state)) {
+ dev_kfree_skb_any(skb);
+ return NETDEV_TX_OK;
+ }
+
+ if (skb->len <= 0) {
+ dev_kfree_skb_any(skb);
+ return NETDEV_TX_OK;
+ }
+
+ /*
+ * need: count + 4 desc gap to keep tail from touching
+ * + 2 desc gap to keep tail from touching head,
+ * + 1 desc for skb->data,
+ * + 1 desc for context descriptor,
+ * head, otherwise try next time
+ */
+ if (igbvf_maybe_stop_tx(netdev, skb_shinfo(skb)->nr_frags + 4)) {
+ /* this is a hard error */
+ return NETDEV_TX_BUSY;
+ }
+
+ if (adapter->vlgrp && vlan_tx_tag_present(skb)) {
+ tx_flags |= IGBVF_TX_FLAGS_VLAN;
+ tx_flags |= (vlan_tx_tag_get(skb) << IGBVF_TX_FLAGS_VLAN_SHIFT);
+ }
+
+ if (skb->protocol == htons(ETH_P_IP))
+ tx_flags |= IGBVF_TX_FLAGS_IPV4;
+
+ first = tx_ring->next_to_use;
+
+ tso = skb_is_gso(skb) ?
+ igbvf_tso(adapter, tx_ring, skb, tx_flags, &hdr_len) : 0;
+ if (unlikely(tso < 0)) {
+ dev_kfree_skb_any(skb);
+ return NETDEV_TX_OK;
+ }
+
+ if (tso)
+ tx_flags |= IGBVF_TX_FLAGS_TSO;
+ else if (igbvf_tx_csum(adapter, tx_ring, skb, tx_flags) &&
+ (skb->ip_summed == CHECKSUM_PARTIAL))
+ tx_flags |= IGBVF_TX_FLAGS_CSUM;
+
+ /*
+ * count reflects descriptors mapped, if 0 then mapping error
+ * has occured and we need to rewind the descriptor queue
+ */
+ count = igbvf_tx_map_adv(adapter, tx_ring, skb, first);
+
+ if (count) {
+ igbvf_tx_queue_adv(adapter, tx_ring, tx_flags, count,
+ skb->len, hdr_len);
+ netdev->trans_start = jiffies;
+ /* Make sure there is space in the ring for the next send. */
+ igbvf_maybe_stop_tx(netdev, MAX_SKB_FRAGS + 4);
+ } else {
+ dev_kfree_skb_any(skb);
+ tx_ring->buffer_info[first].time_stamp = 0;
+ tx_ring->next_to_use = first;
+ }
+
+ return NETDEV_TX_OK;
+}
+
+static int igbvf_xmit_frame(struct sk_buff *skb, struct net_device *netdev)
+{
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+ struct igbvf_ring *tx_ring;
+ int retval;
+
+ if (test_bit(__IGBVF_DOWN, &adapter->state)) {
+ dev_kfree_skb_any(skb);
+ return NETDEV_TX_OK;
+ }
+
+ tx_ring = &adapter->tx_ring[0];
+
+ retval = igbvf_xmit_frame_ring_adv(skb, netdev, tx_ring);
+
+ return retval;
+}
+
+/**
+ * igbvf_tx_timeout - Respond to a Tx Hang
+ * @netdev: network interface device structure
+ **/
+static void igbvf_tx_timeout(struct net_device *netdev)
+{
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+
+ /* Do the reset outside of interrupt context */
+ adapter->tx_timeout_count++;
+ schedule_work(&adapter->reset_task);
+}
+
+static void igbvf_reset_task(struct work_struct *work)
+{
+ struct igbvf_adapter *adapter;
+ adapter = container_of(work, struct igbvf_adapter, reset_task);
+
+ igbvf_reinit_locked(adapter);
+}
+
+/**
+ * igbvf_get_stats - Get System Network Statistics
+ * @netdev: network interface device structure
+ *
+ * Returns the address of the device statistics structure.
+ * The statistics are actually updated from the timer callback.
+ **/
+static struct net_device_stats *igbvf_get_stats(struct net_device *netdev)
+{
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+
+ /* only return the current stats */
+ return &adapter->net_stats;
+}
+
+/**
+ * igbvf_change_mtu - Change the Maximum Transfer Unit
+ * @netdev: network interface device structure
+ * @new_mtu: new value for maximum frame size
+ *
+ * Returns 0 on success, negative on failure
+ **/
+static int igbvf_change_mtu(struct net_device *netdev, int new_mtu)
+{
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+ int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN;
+
+ if ((new_mtu < 68) || (max_frame > MAX_JUMBO_FRAME_SIZE)) {
+ dev_err(&adapter->pdev->dev, "Invalid MTU setting\n");
+ return -EINVAL;
+ }
+
+ /* Jumbo frame size limits */
+ if (max_frame > ETH_FRAME_LEN + ETH_FCS_LEN) {
+ if (!(adapter->flags & FLAG_HAS_JUMBO_FRAMES)) {
+ dev_err(&adapter->pdev->dev,
+ "Jumbo Frames not supported.\n");
+ return -EINVAL;
+ }
+ }
+
+#define MAX_STD_JUMBO_FRAME_SIZE 9234
+ if (max_frame > MAX_STD_JUMBO_FRAME_SIZE) {
+ dev_err(&adapter->pdev->dev, "MTU > 9216 not supported.\n");
+ return -EINVAL;
+ }
+
+ while (test_and_set_bit(__IGBVF_RESETTING, &adapter->state))
+ msleep(1);
+ /* igbvf_down has a dependency on max_frame_size */
+ adapter->max_frame_size = max_frame;
+ if (netif_running(netdev))
+ igbvf_down(adapter);
+
+ /*
+ * NOTE: netdev_alloc_skb reserves 16 bytes, and typically NET_IP_ALIGN
+ * means we reserve 2 more, this pushes us to allocate from the next
+ * larger slab size.
+ * i.e. RXBUFFER_2048 --> size-4096 slab
+ * However with the new *_jumbo_rx* routines, jumbo receives will use
+ * fragmented skbs
+ */
+
+ if (max_frame <= 1024)
+ adapter->rx_buffer_len = 1024;
+ else if (max_frame <= 2048)
+ adapter->rx_buffer_len = 2048;
+ else
+#if (PAGE_SIZE / 2) > 16384
+ adapter->rx_buffer_len = 16384;
+#else
+ adapter->rx_buffer_len = PAGE_SIZE / 2;
+#endif
+
+
+ /* adjust allocation if LPE protects us, and we aren't using SBP */
+ if ((max_frame == ETH_FRAME_LEN + ETH_FCS_LEN) ||
+ (max_frame == ETH_FRAME_LEN + VLAN_HLEN + ETH_FCS_LEN))
+ adapter->rx_buffer_len = ETH_FRAME_LEN + VLAN_HLEN +
+ ETH_FCS_LEN;
+
+ dev_info(&adapter->pdev->dev, "changing MTU from %d to %d\n",
+ netdev->mtu, new_mtu);
+ netdev->mtu = new_mtu;
+
+ if (netif_running(netdev))
+ igbvf_up(adapter);
+ else
+ igbvf_reset(adapter);
+
+ clear_bit(__IGBVF_RESETTING, &adapter->state);
+
+ return 0;
+}
+
+static int igbvf_ioctl(struct net_device *netdev, struct ifreq *ifr, int cmd)
+{
+ switch (cmd) {
+ default:
+ return -EOPNOTSUPP;
+ }
+}
+
+static int igbvf_suspend(struct pci_dev *pdev, pm_message_t state)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+#ifdef CONFIG_PM
+ int retval = 0;
+#endif
+
+ netif_device_detach(netdev);
+
+ if (netif_running(netdev)) {
+ WARN_ON(test_bit(__IGBVF_RESETTING, &adapter->state));
+ igbvf_down(adapter);
+ igbvf_free_irq(adapter);
+ }
+
+#ifdef CONFIG_PM
+ retval = pci_save_state(pdev);
+ if (retval)
+ return retval;
+#endif
+
+ pci_disable_device(pdev);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int igbvf_resume(struct pci_dev *pdev)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+ u32 err;
+
+ pci_restore_state(pdev);
+ err = pci_enable_device_mem(pdev);
+ if (err) {
+ dev_err(&pdev->dev, "Cannot enable PCI device from suspend\n");
+ return err;
+ }
+
+ pci_set_master(pdev);
+
+ if (netif_running(netdev)) {
+ err = igbvf_request_irq(adapter);
+ if (err)
+ return err;
+ }
+
+ igbvf_reset(adapter);
+
+ if (netif_running(netdev))
+ igbvf_up(adapter);
+
+ netif_device_attach(netdev);
+
+ return 0;
+}
+#endif
+
+static void igbvf_shutdown(struct pci_dev *pdev)
+{
+ igbvf_suspend(pdev, PMSG_SUSPEND);
+}
+
+#ifdef CONFIG_NET_POLL_CONTROLLER
+/*
+ * Polling 'interrupt' - used by things like netconsole to send skbs
+ * without having to re-enable interrupts. It's not called while
+ * the interrupt routine is executing.
+ */
+static void igbvf_netpoll(struct net_device *netdev)
+{
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+
+ disable_irq(adapter->pdev->irq);
+
+ igbvf_clean_tx_irq(adapter->tx_ring);
+
+ enable_irq(adapter->pdev->irq);
+}
+#endif
+
+/**
+ * igbvf_io_error_detected - called when PCI error is detected
+ * @pdev: Pointer to PCI device
+ * @state: The current pci connection state
+ *
+ * This function is called after a PCI bus error affecting
+ * this device has been detected.
+ */
+static pci_ers_result_t igbvf_io_error_detected(struct pci_dev *pdev,
+ pci_channel_state_t state)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+
+ netif_device_detach(netdev);
+
+ if (netif_running(netdev))
+ igbvf_down(adapter);
+ pci_disable_device(pdev);
+
+ /* Request a slot slot reset. */
+ return PCI_ERS_RESULT_NEED_RESET;
+}
+
+/**
+ * igbvf_io_slot_reset - called after the pci bus has been reset.
+ * @pdev: Pointer to PCI device
+ *
+ * Restart the card from scratch, as if from a cold-boot. Implementation
+ * resembles the first-half of the igbvf_resume routine.
+ */
+static pci_ers_result_t igbvf_io_slot_reset(struct pci_dev *pdev)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+
+ if (pci_enable_device_mem(pdev)) {
+ dev_err(&pdev->dev,
+ "Cannot re-enable PCI device after reset.\n");
+ return PCI_ERS_RESULT_DISCONNECT;
+ }
+ pci_set_master(pdev);
+
+ igbvf_reset(adapter);
+
+ return PCI_ERS_RESULT_RECOVERED;
+}
+
+/**
+ * igbvf_io_resume - called when traffic can start flowing again.
+ * @pdev: Pointer to PCI device
+ *
+ * This callback is called when the error recovery driver tells us that
+ * its OK to resume normal operation. Implementation resembles the
+ * second-half of the igbvf_resume routine.
+ */
+static void igbvf_io_resume(struct pci_dev *pdev)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+
+ if (netif_running(netdev)) {
+ if (igbvf_up(adapter)) {
+ dev_err(&pdev->dev,
+ "can't bring device back up after reset\n");
+ return;
+ }
+ }
+
+ netif_device_attach(netdev);
+}
+
+static void igbvf_print_device_info(struct igbvf_adapter *adapter)
+{
+ struct e1000_hw *hw = &adapter->hw;
+ struct net_device *netdev = adapter->netdev;
+ struct pci_dev *pdev = adapter->pdev;
+
+ dev_info(&pdev->dev, "Intel(R) 82576 Virtual Function\n");
+ dev_info(&pdev->dev, "Address: %02x:%02x:%02x:%02x:%02x:%02x\n",
+ /* MAC address */
+ netdev->dev_addr[0], netdev->dev_addr[1],
+ netdev->dev_addr[2], netdev->dev_addr[3],
+ netdev->dev_addr[4], netdev->dev_addr[5]);
+ dev_info(&pdev->dev, "MAC: %d\n", hw->mac.type);
+}
+
+static const struct net_device_ops igbvf_netdev_ops = {
+ .ndo_open = igbvf_open,
+ .ndo_stop = igbvf_close,
+ .ndo_start_xmit = igbvf_xmit_frame,
+ .ndo_get_stats = igbvf_get_stats,
+ .ndo_set_multicast_list = igbvf_set_multi,
+ .ndo_set_mac_address = igbvf_set_mac,
+ .ndo_change_mtu = igbvf_change_mtu,
+ .ndo_do_ioctl = igbvf_ioctl,
+ .ndo_tx_timeout = igbvf_tx_timeout,
+ .ndo_vlan_rx_register = igbvf_vlan_rx_register,
+ .ndo_vlan_rx_add_vid = igbvf_vlan_rx_add_vid,
+ .ndo_vlan_rx_kill_vid = igbvf_vlan_rx_kill_vid,
+#ifdef CONFIG_NET_POLL_CONTROLLER
+ .ndo_poll_controller = igbvf_netpoll,
+#endif
+};
+
+/**
+ * igbvf_probe - Device Initialization Routine
+ * @pdev: PCI device information struct
+ * @ent: entry in igbvf_pci_tbl
+ *
+ * Returns 0 on success, negative on failure
+ *
+ * igbvf_probe initializes an adapter identified by a pci_dev structure.
+ * The OS initialization, configuring of the adapter private structure,
+ * and a hardware reset occur.
+ **/
+static int __devinit igbvf_probe(struct pci_dev *pdev,
+ const struct pci_device_id *ent)
+{
+ struct net_device *netdev;
+ struct igbvf_adapter *adapter;
+ struct e1000_hw *hw;
+ const struct igbvf_info *ei = igbvf_info_tbl[ent->driver_data];
+
+ static int cards_found;
+ int err, pci_using_dac;
+
+ err = pci_enable_device_mem(pdev);
+ if (err)
+ return err;
+
+ pci_using_dac = 0;
+ err = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
+ if (!err) {
+ err = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
+ if (!err)
+ pci_using_dac = 1;
+ } else {
+ err = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+ if (err) {
+ err = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+ if (err) {
+ dev_err(&pdev->dev, "No usable DMA "
+ "configuration, aborting\n");
+ goto err_dma;
+ }
+ }
+ }
+
+ err = pci_request_regions(pdev, igbvf_driver_name);
+ if (err)
+ goto err_pci_reg;
+
+ pci_set_master(pdev);
+
+ err = -ENOMEM;
+ netdev = alloc_etherdev(sizeof(struct igbvf_adapter));
+ if (!netdev)
+ goto err_alloc_etherdev;
+
+ SET_NETDEV_DEV(netdev, &pdev->dev);
+
+ pci_set_drvdata(pdev, netdev);
+ adapter = netdev_priv(netdev);
+ hw = &adapter->hw;
+ adapter->netdev = netdev;
+ adapter->pdev = pdev;
+ adapter->ei = ei;
+ adapter->pba = ei->pba;
+ adapter->flags = ei->flags;
+ adapter->hw.back = adapter;
+ adapter->hw.mac.type = ei->mac;
+ adapter->msg_enable = (1 << NETIF_MSG_DRV | NETIF_MSG_PROBE) - 1;
+
+ /* PCI config space info */
+
+ hw->vendor_id = pdev->vendor;
+ hw->device_id = pdev->device;
+ hw->subsystem_vendor_id = pdev->subsystem_vendor;
+ hw->subsystem_device_id = pdev->subsystem_device;
+
+ pci_read_config_byte(pdev, PCI_REVISION_ID, &hw->revision_id);
+
+ err = -EIO;
+ adapter->hw.hw_addr = ioremap(pci_resource_start(pdev, 0),
+ pci_resource_len(pdev, 0));
+
+ if (!adapter->hw.hw_addr)
+ goto err_ioremap;
+
+ if (ei->get_variants) {
+ err = ei->get_variants(adapter);
+ if (err)
+ goto err_ioremap;
+ }
+
+ /* setup adapter struct */
+ err = igbvf_sw_init(adapter);
+ if (err)
+ goto err_sw_init;
+
+ /* construct the net_device struct */
+ netdev->netdev_ops = &igbvf_netdev_ops;
+
+ igbvf_set_ethtool_ops(netdev);
+ netdev->watchdog_timeo = 5 * HZ;
+ strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1);
+
+ adapter->bd_number = cards_found++;
+
+ netdev->features = NETIF_F_SG |
+ NETIF_F_IP_CSUM |
+ NETIF_F_HW_VLAN_TX |
+ NETIF_F_HW_VLAN_RX |
+ NETIF_F_HW_VLAN_FILTER;
+
+ netdev->features |= NETIF_F_IPV6_CSUM;
+ netdev->features |= NETIF_F_TSO;
+ netdev->features |= NETIF_F_TSO6;
+
+ if (pci_using_dac)
+ netdev->features |= NETIF_F_HIGHDMA;
+
+ netdev->vlan_features |= NETIF_F_TSO;
+ netdev->vlan_features |= NETIF_F_TSO6;
+ netdev->vlan_features |= NETIF_F_IP_CSUM;
+ netdev->vlan_features |= NETIF_F_IPV6_CSUM;
+ netdev->vlan_features |= NETIF_F_SG;
+
+ /*reset the controller to put the device in a known good state */
+ err = hw->mac.ops.reset_hw(hw);
+ if (err) {
+ dev_info(&pdev->dev,
+ "PF still in reset state, assigning new address\n");
+ random_ether_addr(hw->mac.addr);
+ } else {
+ err = hw->mac.ops.read_mac_addr(hw);
+ if (err) {
+ dev_err(&pdev->dev, "Error reading MAC address\n");
+ goto err_hw_init;
+ }
+ }
+
+ memcpy(netdev->dev_addr, adapter->hw.mac.addr, netdev->addr_len);
+ memcpy(netdev->perm_addr, adapter->hw.mac.addr, netdev->addr_len);
+
+ if (!is_valid_ether_addr(netdev->perm_addr)) {
+ dev_err(&pdev->dev, "Invalid MAC Address: "
+ "%02x:%02x:%02x:%02x:%02x:%02x\n",
+ netdev->dev_addr[0], netdev->dev_addr[1],
+ netdev->dev_addr[2], netdev->dev_addr[3],
+ netdev->dev_addr[4], netdev->dev_addr[5]);
+ err = -EIO;
+ goto err_hw_init;
+ }
+
+ setup_timer(&adapter->watchdog_timer, &igbvf_watchdog,
+ (unsigned long) adapter);
+
+ INIT_WORK(&adapter->reset_task, igbvf_reset_task);
+ INIT_WORK(&adapter->watchdog_task, igbvf_watchdog_task);
+
+ /* ring size defaults */
+ adapter->rx_ring->count = 1024;
+ adapter->tx_ring->count = 1024;
+
+ /* reset the hardware with the new settings */
+ igbvf_reset(adapter);
+
+ /* tell the stack to leave us alone until igbvf_open() is called */
+ netif_carrier_off(netdev);
+ netif_stop_queue(netdev);
+
+ strcpy(netdev->name, "eth%d");
+ err = register_netdev(netdev);
+ if (err)
+ goto err_hw_init;
+
+ igbvf_print_device_info(adapter);
+
+ igbvf_initialize_last_counter_stats(adapter);
+
+ return 0;
+
+err_hw_init:
+ kfree(adapter->tx_ring);
+ kfree(adapter->rx_ring);
+err_sw_init:
+ igbvf_reset_interrupt_capability(adapter);
+ iounmap(adapter->hw.hw_addr);
+err_ioremap:
+ free_netdev(netdev);
+err_alloc_etherdev:
+ pci_release_regions(pdev);
+err_pci_reg:
+err_dma:
+ pci_disable_device(pdev);
+ return err;
+}
+
+/**
+ * igbvf_remove - Device Removal Routine
+ * @pdev: PCI device information struct
+ *
+ * igbvf_remove is called by the PCI subsystem to alert the driver
+ * that it should release a PCI device. The could be caused by a
+ * Hot-Plug event, or because the driver is going to be removed from
+ * memory.
+ **/
+static void __devexit igbvf_remove(struct pci_dev *pdev)
+{
+ struct net_device *netdev = pci_get_drvdata(pdev);
+ struct igbvf_adapter *adapter = netdev_priv(netdev);
+ struct e1000_hw *hw = &adapter->hw;
+
+ /*
+ * flush_scheduled work may reschedule our watchdog task, so
+ * explicitly disable watchdog tasks from being rescheduled
+ */
+ set_bit(__IGBVF_DOWN, &adapter->state);
+ del_timer_sync(&adapter->watchdog_timer);
+
+ flush_scheduled_work();
+
+ unregister_netdev(netdev);
+
+ igbvf_reset_interrupt_capability(adapter);
+
+ /*
+ * it is important to delete the napi struct prior to freeing the
+ * rx ring so that you do not end up with null pointer refs
+ */
+ netif_napi_del(&adapter->rx_ring->napi);
+ kfree(adapter->tx_ring);
+ kfree(adapter->rx_ring);
+
+ iounmap(hw->hw_addr);
+ if (hw->flash_address)
+ iounmap(hw->flash_address);
+ pci_release_regions(pdev);
+
+ free_netdev(netdev);
+
+ pci_disable_device(pdev);
+}
+
+/* PCI Error Recovery (ERS) */
+static struct pci_error_handlers igbvf_err_handler = {
+ .error_detected = igbvf_io_error_detected,
+ .slot_reset = igbvf_io_slot_reset,
+ .resume = igbvf_io_resume,
+};
+
+static struct pci_device_id igbvf_pci_tbl[] = {
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_VF), board_vf },
+ { } /* terminate list */
+};
+MODULE_DEVICE_TABLE(pci, igbvf_pci_tbl);
+
+/* PCI Device API Driver */
+static struct pci_driver igbvf_driver = {
+ .name = igbvf_driver_name,
+ .id_table = igbvf_pci_tbl,
+ .probe = igbvf_probe,
+ .remove = __devexit_p(igbvf_remove),
+#ifdef CONFIG_PM
+ /* Power Management Hooks */
+ .suspend = igbvf_suspend,
+ .resume = igbvf_resume,
+#endif
+ .shutdown = igbvf_shutdown,
+ .err_handler = &igbvf_err_handler
+};
+
+/**
+ * igbvf_init_module - Driver Registration Routine
+ *
+ * igbvf_init_module is the first routine called when the driver is
+ * loaded. All it does is register with the PCI subsystem.
+ **/
+static int __init igbvf_init_module(void)
+{
+ int ret;
+ printk(KERN_INFO "%s - version %s\n",
+ igbvf_driver_string, igbvf_driver_version);
+ printk(KERN_INFO "%s\n", igbvf_copyright);
+
+ ret = pci_register_driver(&igbvf_driver);
+ pm_qos_add_requirement(PM_QOS_CPU_DMA_LATENCY, igbvf_driver_name,
+ PM_QOS_DEFAULT_VALUE);
+
+ return ret;
+}
+module_init(igbvf_init_module);
+
+/**
+ * igbvf_exit_module - Driver Exit Cleanup Routine
+ *
+ * igbvf_exit_module is called just before the driver is removed
+ * from memory.
+ **/
+static void __exit igbvf_exit_module(void)
+{
+ pci_unregister_driver(&igbvf_driver);
+ pm_qos_remove_requirement(PM_QOS_CPU_DMA_LATENCY, igbvf_driver_name);
+}
+module_exit(igbvf_exit_module);
+
+
+MODULE_AUTHOR("Intel Corporation, <e1000-devel@lists.sourceforge.net>");
+MODULE_DESCRIPTION("Intel(R) 82576 Virtual Function Network Driver");
+MODULE_LICENSE("GPL");
+MODULE_VERSION(DRV_VERSION);
+
+/* netdev.c */
diff --git a/drivers/net/igbvf/regs.h b/drivers/net/igbvf/regs.h
new file mode 100644
index 00000000000..b9e24ed70d0
--- /dev/null
+++ b/drivers/net/igbvf/regs.h
@@ -0,0 +1,108 @@
+/*******************************************************************************
+
+ Intel(R) 82576 Virtual Function Linux driver
+ Copyright(c) 2009 Intel Corporation.
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms and conditions of the GNU General Public License,
+ version 2, as published by the Free Software Foundation.
+
+ This program is distributed in the hope it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along with
+ this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+ The full GNU General Public License is included in this distribution in
+ the file called "COPYING".
+
+ Contact Information:
+ e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+ Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+#ifndef _E1000_REGS_H_
+#define _E1000_REGS_H_
+
+#define E1000_CTRL 0x00000 /* Device Control - RW */
+#define E1000_STATUS 0x00008 /* Device Status - RO */
+#define E1000_ITR 0x000C4 /* Interrupt Throttling Rate - RW */
+#define E1000_EICR 0x01580 /* Ext. Interrupt Cause Read - R/clr */
+#define E1000_EITR(_n) (0x01680 + (0x4 * (_n)))
+#define E1000_EICS 0x01520 /* Ext. Interrupt Cause Set - W0 */
+#define E1000_EIMS 0x01524 /* Ext. Interrupt Mask Set/Read - RW */
+#define E1000_EIMC 0x01528 /* Ext. Interrupt Mask Clear - WO */
+#define E1000_EIAC 0x0152C /* Ext. Interrupt Auto Clear - RW */
+#define E1000_EIAM 0x01530 /* Ext. Interrupt Ack Auto Clear Mask - RW */
+#define E1000_IVAR0 0x01700 /* Interrupt Vector Allocation (array) - RW */
+#define E1000_IVAR_MISC 0x01740 /* IVAR for "other" causes - RW */
+/*
+ * Convenience macros
+ *
+ * Note: "_n" is the queue number of the register to be written to.
+ *
+ * Example usage:
+ * E1000_RDBAL_REG(current_rx_queue)
+ */
+#define E1000_RDBAL(_n) ((_n) < 4 ? (0x02800 + ((_n) * 0x100)) : \
+ (0x0C000 + ((_n) * 0x40)))
+#define E1000_RDBAH(_n) ((_n) < 4 ? (0x02804 + ((_n) * 0x100)) : \
+ (0x0C004 + ((_n) * 0x40)))
+#define E1000_RDLEN(_n) ((_n) < 4 ? (0x02808 + ((_n) * 0x100)) : \
+ (0x0C008 + ((_n) * 0x40)))
+#define E1000_SRRCTL(_n) ((_n) < 4 ? (0x0280C + ((_n) * 0x100)) : \
+ (0x0C00C + ((_n) * 0x40)))
+#define E1000_RDH(_n) ((_n) < 4 ? (0x02810 + ((_n) * 0x100)) : \
+ (0x0C010 + ((_n) * 0x40)))
+#define E1000_RDT(_n) ((_n) < 4 ? (0x02818 + ((_n) * 0x100)) : \
+ (0x0C018 + ((_n) * 0x40)))
+#define E1000_RXDCTL(_n) ((_n) < 4 ? (0x02828 + ((_n) * 0x100)) : \
+ (0x0C028 + ((_n) * 0x40)))
+#define E1000_TDBAL(_n) ((_n) < 4 ? (0x03800 + ((_n) * 0x100)) : \
+ (0x0E000 + ((_n) * 0x40)))
+#define E1000_TDBAH(_n) ((_n) < 4 ? (0x03804 + ((_n) * 0x100)) : \
+ (0x0E004 + ((_n) * 0x40)))
+#define E1000_TDLEN(_n) ((_n) < 4 ? (0x03808 + ((_n) * 0x100)) : \
+ (0x0E008 + ((_n) * 0x40)))
+#define E1000_TDH(_n) ((_n) < 4 ? (0x03810 + ((_n) * 0x100)) : \
+ (0x0E010 + ((_n) * 0x40)))
+#define E1000_TDT(_n) ((_n) < 4 ? (0x03818 + ((_n) * 0x100)) : \
+ (0x0E018 + ((_n) * 0x40)))
+#define E1000_TXDCTL(_n) ((_n) < 4 ? (0x03828 + ((_n) * 0x100)) : \
+ (0x0E028 + ((_n) * 0x40)))
+#define E1000_DCA_TXCTRL(_n) (0x03814 + (_n << 8))
+#define E1000_DCA_RXCTRL(_n) (0x02814 + (_n << 8))
+#define E1000_RAL(_i) (((_i) <= 15) ? (0x05400 + ((_i) * 8)) : \
+ (0x054E0 + ((_i - 16) * 8)))
+#define E1000_RAH(_i) (((_i) <= 15) ? (0x05404 + ((_i) * 8)) : \
+ (0x054E4 + ((_i - 16) * 8)))
+
+/* Statistics registers */
+#define E1000_VFGPRC 0x00F10
+#define E1000_VFGORC 0x00F18
+#define E1000_VFMPRC 0x00F3C
+#define E1000_VFGPTC 0x00F14
+#define E1000_VFGOTC 0x00F34
+#define E1000_VFGOTLBC 0x00F50
+#define E1000_VFGPTLBC 0x00F44
+#define E1000_VFGORLBC 0x00F48
+#define E1000_VFGPRLBC 0x00F40
+
+/* These act per VF so an array friendly macro is used */
+#define E1000_V2PMAILBOX(_n) (0x00C40 + (4 * (_n)))
+#define E1000_VMBMEM(_n) (0x00800 + (64 * (_n)))
+
+/* Define macros for handling registers */
+#define er32(reg) readl(hw->hw_addr + E1000_##reg)
+#define ew32(reg, val) writel((val), hw->hw_addr + E1000_##reg)
+#define array_er32(reg, offset) \
+ readl(hw->hw_addr + E1000_##reg + (offset << 2))
+#define array_ew32(reg, offset, val) \
+ writel((val), hw->hw_addr + E1000_##reg + (offset << 2))
+#define e1e_flush() er32(STATUS)
+
+#endif
diff --git a/drivers/net/igbvf/vf.c b/drivers/net/igbvf/vf.c
new file mode 100644
index 00000000000..aa246c93279
--- /dev/null
+++ b/drivers/net/igbvf/vf.c
@@ -0,0 +1,398 @@
+/*******************************************************************************
+
+ Intel(R) 82576 Virtual Function Linux driver
+ Copyright(c) 2009 Intel Corporation.
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms and conditions of the GNU General Public License,
+ version 2, as published by the Free Software Foundation.
+
+ This program is distributed in the hope it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along with
+ this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+ The full GNU General Public License is included in this distribution in
+ the file called "COPYING".
+
+ Contact Information:
+ e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+ Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+
+#include "vf.h"
+
+static s32 e1000_check_for_link_vf(struct e1000_hw *hw);
+static s32 e1000_get_link_up_info_vf(struct e1000_hw *hw, u16 *speed,
+ u16 *duplex);
+static s32 e1000_init_hw_vf(struct e1000_hw *hw);
+static s32 e1000_reset_hw_vf(struct e1000_hw *hw);
+
+static void e1000_update_mc_addr_list_vf(struct e1000_hw *hw, u8 *,
+ u32, u32, u32);
+static void e1000_rar_set_vf(struct e1000_hw *, u8 *, u32);
+static s32 e1000_read_mac_addr_vf(struct e1000_hw *);
+static s32 e1000_set_vfta_vf(struct e1000_hw *, u16, bool);
+
+/**
+ * e1000_init_mac_params_vf - Inits MAC params
+ * @hw: pointer to the HW structure
+ **/
+s32 e1000_init_mac_params_vf(struct e1000_hw *hw)
+{
+ struct e1000_mac_info *mac = &hw->mac;
+
+ /* VF's have no MTA Registers - PF feature only */
+ mac->mta_reg_count = 128;
+ /* VF's have no access to RAR entries */
+ mac->rar_entry_count = 1;
+
+ /* Function pointers */
+ /* reset */
+ mac->ops.reset_hw = e1000_reset_hw_vf;
+ /* hw initialization */
+ mac->ops.init_hw = e1000_init_hw_vf;
+ /* check for link */
+ mac->ops.check_for_link = e1000_check_for_link_vf;
+ /* link info */
+ mac->ops.get_link_up_info = e1000_get_link_up_info_vf;
+ /* multicast address update */
+ mac->ops.update_mc_addr_list = e1000_update_mc_addr_list_vf;
+ /* set mac address */
+ mac->ops.rar_set = e1000_rar_set_vf;
+ /* read mac address */
+ mac->ops.read_mac_addr = e1000_read_mac_addr_vf;
+ /* set vlan filter table array */
+ mac->ops.set_vfta = e1000_set_vfta_vf;
+
+ return E1000_SUCCESS;
+}
+
+/**
+ * e1000_init_function_pointers_vf - Inits function pointers
+ * @hw: pointer to the HW structure
+ **/
+void e1000_init_function_pointers_vf(struct e1000_hw *hw)
+{
+ hw->mac.ops.init_params = e1000_init_mac_params_vf;
+ hw->mbx.ops.init_params = e1000_init_mbx_params_vf;
+}
+
+/**
+ * e1000_get_link_up_info_vf - Gets link info.
+ * @hw: pointer to the HW structure
+ * @speed: pointer to 16 bit value to store link speed.
+ * @duplex: pointer to 16 bit value to store duplex.
+ *
+ * Since we cannot read the PHY and get accurate link info, we must rely upon
+ * the status register's data which is often stale and inaccurate.
+ **/
+static s32 e1000_get_link_up_info_vf(struct e1000_hw *hw, u16 *speed,
+ u16 *duplex)
+{
+ s32 status;
+
+ status = er32(STATUS);
+ if (status & E1000_STATUS_SPEED_1000)
+ *speed = SPEED_1000;
+ else if (status & E1000_STATUS_SPEED_100)
+ *speed = SPEED_100;
+ else
+ *speed = SPEED_10;
+
+ if (status & E1000_STATUS_FD)
+ *duplex = FULL_DUPLEX;
+ else
+ *duplex = HALF_DUPLEX;
+
+ return E1000_SUCCESS;
+}
+
+/**
+ * e1000_reset_hw_vf - Resets the HW
+ * @hw: pointer to the HW structure
+ *
+ * VF's provide a function level reset. This is done using bit 26 of ctrl_reg.
+ * This is all the reset we can perform on a VF.
+ **/
+static s32 e1000_reset_hw_vf(struct e1000_hw *hw)
+{
+ struct e1000_mbx_info *mbx = &hw->mbx;
+ u32 timeout = E1000_VF_INIT_TIMEOUT;
+ u32 ret_val = -E1000_ERR_MAC_INIT;
+ u32 msgbuf[3];
+ u8 *addr = (u8 *)(&msgbuf[1]);
+ u32 ctrl;
+
+ /* assert vf queue/interrupt reset */
+ ctrl = er32(CTRL);
+ ew32(CTRL, ctrl | E1000_CTRL_RST);
+
+ /* we cannot initialize while the RSTI / RSTD bits are asserted */
+ while (!mbx->ops.check_for_rst(hw) && timeout) {
+ timeout--;
+ udelay(5);
+ }
+
+ if (timeout) {
+ /* mailbox timeout can now become active */
+ mbx->timeout = E1000_VF_MBX_INIT_TIMEOUT;
+
+ /* notify pf of vf reset completion */
+ msgbuf[0] = E1000_VF_RESET;
+ mbx->ops.write_posted(hw, msgbuf, 1);
+
+ msleep(10);
+
+ /* set our "perm_addr" based on info provided by PF */
+ ret_val = mbx->ops.read_posted(hw, msgbuf, 3);
+ if (!ret_val) {
+ if (msgbuf[0] == (E1000_VF_RESET | E1000_VT_MSGTYPE_ACK))
+ memcpy(hw->mac.perm_addr, addr, 6);
+ else
+ ret_val = -E1000_ERR_MAC_INIT;
+ }
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_init_hw_vf - Inits the HW
+ * @hw: pointer to the HW structure
+ *
+ * Not much to do here except clear the PF Reset indication if there is one.
+ **/
+static s32 e1000_init_hw_vf(struct e1000_hw *hw)
+{
+ /* attempt to set and restore our mac address */
+ e1000_rar_set_vf(hw, hw->mac.addr, 0);
+
+ return E1000_SUCCESS;
+}
+
+/**
+ * e1000_hash_mc_addr_vf - Generate a multicast hash value
+ * @hw: pointer to the HW structure
+ * @mc_addr: pointer to a multicast address
+ *
+ * Generates a multicast address hash value which is used to determine
+ * the multicast filter table array address and new table value. See
+ * e1000_mta_set_generic()
+ **/
+static u32 e1000_hash_mc_addr_vf(struct e1000_hw *hw, u8 *mc_addr)
+{
+ u32 hash_value, hash_mask;
+ u8 bit_shift = 0;
+
+ /* Register count multiplied by bits per register */
+ hash_mask = (hw->mac.mta_reg_count * 32) - 1;
+
+ /*
+ * The bit_shift is the number of left-shifts
+ * where 0xFF would still fall within the hash mask.
+ */
+ while (hash_mask >> bit_shift != 0xFF)
+ bit_shift++;
+
+ hash_value = hash_mask & (((mc_addr[4] >> (8 - bit_shift)) |
+ (((u16) mc_addr[5]) << bit_shift)));
+
+ return hash_value;
+}
+
+/**
+ * e1000_update_mc_addr_list_vf - Update Multicast addresses
+ * @hw: pointer to the HW structure
+ * @mc_addr_list: array of multicast addresses to program
+ * @mc_addr_count: number of multicast addresses to program
+ * @rar_used_count: the first RAR register free to program
+ * @rar_count: total number of supported Receive Address Registers
+ *
+ * Updates the Receive Address Registers and Multicast Table Array.
+ * The caller must have a packed mc_addr_list of multicast addresses.
+ * The parameter rar_count will usually be hw->mac.rar_entry_count
+ * unless there are workarounds that change this.
+ **/
+void e1000_update_mc_addr_list_vf(struct e1000_hw *hw,
+ u8 *mc_addr_list, u32 mc_addr_count,
+ u32 rar_used_count, u32 rar_count)
+{
+ struct e1000_mbx_info *mbx = &hw->mbx;
+ u32 msgbuf[E1000_VFMAILBOX_SIZE];
+ u16 *hash_list = (u16 *)&msgbuf[1];
+ u32 hash_value;
+ u32 cnt, i;
+
+ /* Each entry in the list uses 1 16 bit word. We have 30
+ * 16 bit words available in our HW msg buffer (minus 1 for the
+ * msg type). That's 30 hash values if we pack 'em right. If
+ * there are more than 30 MC addresses to add then punt the
+ * extras for now and then add code to handle more than 30 later.
+ * It would be unusual for a server to request that many multi-cast
+ * addresses except for in large enterprise network environments.
+ */
+
+ cnt = (mc_addr_count > 30) ? 30 : mc_addr_count;
+ msgbuf[0] = E1000_VF_SET_MULTICAST;
+ msgbuf[0] |= cnt << E1000_VT_MSGINFO_SHIFT;
+
+ for (i = 0; i < cnt; i++) {
+ hash_value = e1000_hash_mc_addr_vf(hw, mc_addr_list);
+ hash_list[i] = hash_value & 0x0FFFF;
+ mc_addr_list += ETH_ADDR_LEN;
+ }
+
+ mbx->ops.write_posted(hw, msgbuf, E1000_VFMAILBOX_SIZE);
+}
+
+/**
+ * e1000_set_vfta_vf - Set/Unset vlan filter table address
+ * @hw: pointer to the HW structure
+ * @vid: determines the vfta register and bit to set/unset
+ * @set: if true then set bit, else clear bit
+ **/
+static s32 e1000_set_vfta_vf(struct e1000_hw *hw, u16 vid, bool set)
+{
+ struct e1000_mbx_info *mbx = &hw->mbx;
+ u32 msgbuf[2];
+ s32 err;
+
+ msgbuf[0] = E1000_VF_SET_VLAN;
+ msgbuf[1] = vid;
+ /* Setting the 8 bit field MSG INFO to true indicates "add" */
+ if (set)
+ msgbuf[0] |= 1 << E1000_VT_MSGINFO_SHIFT;
+
+ mbx->ops.write_posted(hw, msgbuf, 2);
+
+ err = mbx->ops.read_posted(hw, msgbuf, 2);
+
+ /* if nacked the vlan was rejected */
+ if (!err && (msgbuf[0] == (E1000_VF_SET_VLAN | E1000_VT_MSGTYPE_NACK)))
+ err = -E1000_ERR_MAC_INIT;
+
+ return err;
+}
+
+/** e1000_rlpml_set_vf - Set the maximum receive packet length
+ * @hw: pointer to the HW structure
+ * @max_size: value to assign to max frame size
+ **/
+void e1000_rlpml_set_vf(struct e1000_hw *hw, u16 max_size)
+{
+ struct e1000_mbx_info *mbx = &hw->mbx;
+ u32 msgbuf[2];
+
+ msgbuf[0] = E1000_VF_SET_LPE;
+ msgbuf[1] = max_size;
+
+ mbx->ops.write_posted(hw, msgbuf, 2);
+}
+
+/**
+ * e1000_rar_set_vf - set device MAC address
+ * @hw: pointer to the HW structure
+ * @addr: pointer to the receive address
+ * @index receive address array register
+ **/
+static void e1000_rar_set_vf(struct e1000_hw *hw, u8 * addr, u32 index)
+{
+ struct e1000_mbx_info *mbx = &hw->mbx;
+ u32 msgbuf[3];
+ u8 *msg_addr = (u8 *)(&msgbuf[1]);
+ s32 ret_val;
+
+ memset(msgbuf, 0, 12);
+ msgbuf[0] = E1000_VF_SET_MAC_ADDR;
+ memcpy(msg_addr, addr, 6);
+ ret_val = mbx->ops.write_posted(hw, msgbuf, 3);
+
+ if (!ret_val)
+ ret_val = mbx->ops.read_posted(hw, msgbuf, 3);
+
+ /* if nacked the address was rejected, use "perm_addr" */
+ if (!ret_val &&
+ (msgbuf[0] == (E1000_VF_SET_MAC_ADDR | E1000_VT_MSGTYPE_NACK)))
+ e1000_read_mac_addr_vf(hw);
+}
+
+/**
+ * e1000_read_mac_addr_vf - Read device MAC address
+ * @hw: pointer to the HW structure
+ **/
+static s32 e1000_read_mac_addr_vf(struct e1000_hw *hw)
+{
+ int i;
+
+ for (i = 0; i < ETH_ADDR_LEN; i++)
+ hw->mac.addr[i] = hw->mac.perm_addr[i];
+
+ return E1000_SUCCESS;
+}
+
+/**
+ * e1000_check_for_link_vf - Check for link for a virtual interface
+ * @hw: pointer to the HW structure
+ *
+ * Checks to see if the underlying PF is still talking to the VF and
+ * if it is then it reports the link state to the hardware, otherwise
+ * it reports link down and returns an error.
+ **/
+static s32 e1000_check_for_link_vf(struct e1000_hw *hw)
+{
+ struct e1000_mbx_info *mbx = &hw->mbx;
+ struct e1000_mac_info *mac = &hw->mac;
+ s32 ret_val = E1000_SUCCESS;
+ u32 in_msg = 0;
+
+ /*
+ * We only want to run this if there has been a rst asserted.
+ * in this case that could mean a link change, device reset,
+ * or a virtual function reset
+ */
+
+ /* If we were hit with a reset drop the link */
+ if (!mbx->ops.check_for_rst(hw))
+ mac->get_link_status = true;
+
+ if (!mac->get_link_status)
+ goto out;
+
+ /* if link status is down no point in checking to see if pf is up */
+ if (!(er32(STATUS) & E1000_STATUS_LU))
+ goto out;
+
+ /* if the read failed it could just be a mailbox collision, best wait
+ * until we are called again and don't report an error */
+ if (mbx->ops.read(hw, &in_msg, 1))
+ goto out;
+
+ /* if incoming message isn't clear to send we are waiting on response */
+ if (!(in_msg & E1000_VT_MSGTYPE_CTS)) {
+ /* message is not CTS and is NACK we must have lost CTS status */
+ if (in_msg & E1000_VT_MSGTYPE_NACK)
+ ret_val = -E1000_ERR_MAC_INIT;
+ goto out;
+ }
+
+ /* the pf is talking, if we timed out in the past we reinit */
+ if (!mbx->timeout) {
+ ret_val = -E1000_ERR_MAC_INIT;
+ goto out;
+ }
+
+ /* if we passed all the tests above then the link is up and we no
+ * longer need to check for link */
+ mac->get_link_status = false;
+
+out:
+ return ret_val;
+}
+
diff --git a/drivers/net/igbvf/vf.h b/drivers/net/igbvf/vf.h
new file mode 100644
index 00000000000..ec07228f947
--- /dev/null
+++ b/drivers/net/igbvf/vf.h
@@ -0,0 +1,265 @@
+/*******************************************************************************
+
+ Intel(R) 82576 Virtual Function Linux driver
+ Copyright(c) 2009 Intel Corporation.
+
+ This program is free software; you can redistribute it and/or modify it
+ under the terms and conditions of the GNU General Public License,
+ version 2, as published by the Free Software Foundation.
+
+ This program is distributed in the hope it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ You should have received a copy of the GNU General Public License along with
+ this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+
+ The full GNU General Public License is included in this distribution in
+ the file called "COPYING".
+
+ Contact Information:
+ e1000-devel Mailing List <e1000-devel@lists.sourceforge.net>
+ Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+*******************************************************************************/
+
+#ifndef _E1000_VF_H_
+#define _E1000_VF_H_
+
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/if_ether.h>
+
+#include "regs.h"
+#include "defines.h"
+
+struct e1000_hw;
+
+#define E1000_DEV_ID_82576_VF 0x10CA
+#define E1000_REVISION_0 0
+#define E1000_REVISION_1 1
+#define E1000_REVISION_2 2
+#define E1000_REVISION_3 3
+#define E1000_REVISION_4 4
+
+#define E1000_FUNC_0 0
+#define E1000_FUNC_1 1
+
+/*
+ * Receive Address Register Count
+ * Number of high/low register pairs in the RAR. The RAR (Receive Address
+ * Registers) holds the directed and multicast addresses that we monitor.
+ * These entries are also used for MAC-based filtering.
+ */
+#define E1000_RAR_ENTRIES_VF 1
+
+/* Receive Descriptor - Advanced */
+union e1000_adv_rx_desc {
+ struct {
+ u64 pkt_addr; /* Packet buffer address */
+ u64 hdr_addr; /* Header buffer address */
+ } read;
+ struct {
+ struct {
+ union {
+ u32 data;
+ struct {
+ u16 pkt_info; /* RSS/Packet type */
+ u16 hdr_info; /* Split Header,
+ * hdr buffer length */
+ } hs_rss;
+ } lo_dword;
+ union {
+ u32 rss; /* RSS Hash */
+ struct {
+ u16 ip_id; /* IP id */
+ u16 csum; /* Packet Checksum */
+ } csum_ip;
+ } hi_dword;
+ } lower;
+ struct {
+ u32 status_error; /* ext status/error */
+ u16 length; /* Packet length */
+ u16 vlan; /* VLAN tag */
+ } upper;
+ } wb; /* writeback */
+};
+
+#define E1000_RXDADV_HDRBUFLEN_MASK 0x7FE0
+#define E1000_RXDADV_HDRBUFLEN_SHIFT 5
+
+/* Transmit Descriptor - Advanced */
+union e1000_adv_tx_desc {
+ struct {
+ u64 buffer_addr; /* Address of descriptor's data buf */
+ u32 cmd_type_len;
+ u32 olinfo_status;
+ } read;
+ struct {
+ u64 rsvd; /* Reserved */
+ u32 nxtseq_seed;
+ u32 status;
+ } wb;
+};
+
+/* Adv Transmit Descriptor Config Masks */
+#define E1000_ADVTXD_DTYP_CTXT 0x00200000 /* Advanced Context Descriptor */
+#define E1000_ADVTXD_DTYP_DATA 0x00300000 /* Advanced Data Descriptor */
+#define E1000_ADVTXD_DCMD_EOP 0x01000000 /* End of Packet */
+#define E1000_ADVTXD_DCMD_IFCS 0x02000000 /* Insert FCS (Ethernet CRC) */
+#define E1000_ADVTXD_DCMD_RS 0x08000000 /* Report Status */
+#define E1000_ADVTXD_DCMD_DEXT 0x20000000 /* Descriptor extension (1=Adv) */
+#define E1000_ADVTXD_DCMD_VLE 0x40000000 /* VLAN pkt enable */
+#define E1000_ADVTXD_DCMD_TSE 0x80000000 /* TCP Seg enable */
+#define E1000_ADVTXD_PAYLEN_SHIFT 14 /* Adv desc PAYLEN shift */
+
+/* Context descriptors */
+struct e1000_adv_tx_context_desc {
+ u32 vlan_macip_lens;
+ u32 seqnum_seed;
+ u32 type_tucmd_mlhl;
+ u32 mss_l4len_idx;
+};
+
+#define E1000_ADVTXD_MACLEN_SHIFT 9 /* Adv ctxt desc mac len shift */
+#define E1000_ADVTXD_TUCMD_IPV4 0x00000400 /* IP Packet Type: 1=IPv4 */
+#define E1000_ADVTXD_TUCMD_L4T_TCP 0x00000800 /* L4 Packet TYPE of TCP */
+#define E1000_ADVTXD_L4LEN_SHIFT 8 /* Adv ctxt L4LEN shift */
+#define E1000_ADVTXD_MSS_SHIFT 16 /* Adv ctxt MSS shift */
+
+enum e1000_mac_type {
+ e1000_undefined = 0,
+ e1000_vfadapt,
+ e1000_num_macs /* List is 1-based, so subtract 1 for true count. */
+};
+
+struct e1000_vf_stats {
+ u64 base_gprc;
+ u64 base_gptc;
+ u64 base_gorc;
+ u64 base_gotc;
+ u64 base_mprc;
+ u64 base_gotlbc;
+ u64 base_gptlbc;
+ u64 base_gorlbc;
+ u64 base_gprlbc;
+
+ u32 last_gprc;
+ u32 last_gptc;
+ u32 last_gorc;
+ u32 last_gotc;
+ u32 last_mprc;
+ u32 last_gotlbc;
+ u32 last_gptlbc;
+ u32 last_gorlbc;
+ u32 last_gprlbc;
+
+ u64 gprc;
+ u64 gptc;
+ u64 gorc;
+ u64 gotc;
+ u64 mprc;
+ u64 gotlbc;
+ u64 gptlbc;
+ u64 gorlbc;
+ u64 gprlbc;
+};
+
+#include "mbx.h"
+
+struct e1000_mac_operations {
+ /* Function pointers for the MAC. */
+ s32 (*init_params)(struct e1000_hw *);
+ s32 (*check_for_link)(struct e1000_hw *);
+ void (*clear_vfta)(struct e1000_hw *);
+ s32 (*get_bus_info)(struct e1000_hw *);
+ s32 (*get_link_up_info)(struct e1000_hw *, u16 *, u16 *);
+ void (*update_mc_addr_list)(struct e1000_hw *, u8 *, u32, u32, u32);
+ s32 (*reset_hw)(struct e1000_hw *);
+ s32 (*init_hw)(struct e1000_hw *);
+ s32 (*setup_link)(struct e1000_hw *);
+ void (*write_vfta)(struct e1000_hw *, u32, u32);
+ void (*mta_set)(struct e1000_hw *, u32);
+ void (*rar_set)(struct e1000_hw *, u8*, u32);
+ s32 (*read_mac_addr)(struct e1000_hw *);
+ s32 (*set_vfta)(struct e1000_hw *, u16, bool);
+};
+
+struct e1000_mac_info {
+ struct e1000_mac_operations ops;
+ u8 addr[6];
+ u8 perm_addr[6];
+
+ enum e1000_mac_type type;
+
+ u16 mta_reg_count;
+ u16 rar_entry_count;
+
+ bool get_link_status;
+};
+
+struct e1000_mbx_operations {
+ s32 (*init_params)(struct e1000_hw *hw);
+ s32 (*read)(struct e1000_hw *, u32 *, u16);
+ s32 (*write)(struct e1000_hw *, u32 *, u16);
+ s32 (*read_posted)(struct e1000_hw *, u32 *, u16);
+ s32 (*write_posted)(struct e1000_hw *, u32 *, u16);
+ s32 (*check_for_msg)(struct e1000_hw *);
+ s32 (*check_for_ack)(struct e1000_hw *);
+ s32 (*check_for_rst)(struct e1000_hw *);
+};
+
+struct e1000_mbx_stats {
+ u32 msgs_tx;
+ u32 msgs_rx;
+
+ u32 acks;
+ u32 reqs;
+ u32 rsts;
+};
+
+struct e1000_mbx_info {
+ struct e1000_mbx_operations ops;
+ struct e1000_mbx_stats stats;
+ u32 timeout;
+ u32 usec_delay;
+ u16 size;
+};
+
+struct e1000_dev_spec_vf {
+ u32 vf_number;
+ u32 v2p_mailbox;
+};
+
+struct e1000_hw {
+ void *back;
+
+ u8 __iomem *hw_addr;
+ u8 __iomem *flash_address;
+ unsigned long io_base;
+
+ struct e1000_mac_info mac;
+ struct e1000_mbx_info mbx;
+
+ union {
+ struct e1000_dev_spec_vf vf;
+ } dev_spec;
+
+ u16 device_id;
+ u16 subsystem_vendor_id;
+ u16 subsystem_device_id;
+ u16 vendor_id;
+
+ u8 revision_id;
+};
+
+/* These functions must be implemented by drivers */
+void e1000_rlpml_set_vf(struct e1000_hw *, u16);
+void e1000_init_function_pointers_vf(struct e1000_hw *hw);
+s32 e1000_init_mac_params_vf(struct e1000_hw *hw);
+
+
+#endif /* _E1000_VF_H_ */
diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c
index a56d9d2df73..b3185bf2c15 100644
--- a/drivers/net/mv643xx_eth.c
+++ b/drivers/net/mv643xx_eth.c
@@ -2274,8 +2274,6 @@ static void port_start(struct mv643xx_eth_private *mp)
pscr |= FORCE_LINK_PASS;
wrlp(mp, PORT_SERIAL_CONTROL, pscr);
- wrlp(mp, SDMA_CONFIG, PORT_SDMA_CONFIG_DEFAULT_VALUE);
-
/*
* Configure TX path and queues.
*/
@@ -2957,6 +2955,8 @@ static int mv643xx_eth_probe(struct platform_device *pdev)
netif_carrier_off(dev);
+ wrlp(mp, SDMA_CONFIG, PORT_SDMA_CONFIG_DEFAULT_VALUE);
+
set_rx_coal(mp, 250);
set_tx_coal(mp, 0);
diff --git a/drivers/net/niu.c b/drivers/net/niu.c
index 73cac6c78cb..2b1745328cf 100644
--- a/drivers/net/niu.c
+++ b/drivers/net/niu.c
@@ -4834,6 +4834,7 @@ static int niu_compute_rbr_cfig_b(struct rx_ring_info *rp, u64 *ret)
{
u64 val = 0;
+ *ret = 0;
switch (rp->rbr_block_size) {
case 4 * 1024:
val |= (RBR_BLKSIZE_4K << RBR_CFIG_B_BLKSIZE_SHIFT);
@@ -9542,7 +9543,7 @@ static struct niu_parent * __devinit niu_new_parent(struct niu *np,
plat_dev = platform_device_register_simple("niu", niu_parent_index,
NULL, 0);
- if (!plat_dev)
+ if (IS_ERR(plat_dev))
return NULL;
for (i = 0; attr_name(niu_parent_attributes[i]); i++) {
diff --git a/drivers/net/r6040.c b/drivers/net/r6040.c
index 5e8540b6ffa..6f97b47d74a 100644
--- a/drivers/net/r6040.c
+++ b/drivers/net/r6040.c
@@ -160,6 +160,7 @@ MODULE_AUTHOR("Sten Wang <sten.wang@rdc.com.tw>,"
"Florian Fainelli <florian@openwrt.org>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("RDC R6040 NAPI PCI FastEthernet driver");
+MODULE_VERSION(DRV_VERSION " " DRV_RELDATE);
/* RX and TX interrupts that we handle */
#define RX_INTS (RX_FIFO_FULL | RX_NO_DESC | RX_FINISH)
diff --git a/drivers/net/smsc911x.c b/drivers/net/smsc911x.c
index 6da67812982..eb7db032a78 100644
--- a/drivers/net/smsc911x.c
+++ b/drivers/net/smsc911x.c
@@ -317,7 +317,7 @@ static int smsc911x_mii_read(struct mii_bus *bus, int phyaddr, int regidx)
goto out;
}
- SMSC_WARNING(HW, "Timed out waiting for MII write to finish");
+ SMSC_WARNING(HW, "Timed out waiting for MII read to finish");
reg = -EIO;
out:
diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c
index 45940f31fe9..218b9a16ac3 100644
--- a/drivers/platform/x86/fujitsu-laptop.c
+++ b/drivers/platform/x86/fujitsu-laptop.c
@@ -174,8 +174,7 @@ struct fujitsu_hotkey_t {
static struct fujitsu_hotkey_t *fujitsu_hotkey;
-static void acpi_fujitsu_hotkey_notify(acpi_handle handle, u32 event,
- void *data);
+static void acpi_fujitsu_hotkey_notify(struct acpi_device *device, u32 event);
#ifdef CONFIG_LEDS_CLASS
static enum led_brightness logolamp_get(struct led_classdev *cdev);
@@ -203,7 +202,7 @@ struct led_classdev kblamps_led = {
static u32 dbg_level = 0x03;
#endif
-static void acpi_fujitsu_notify(acpi_handle handle, u32 event, void *data);
+static void acpi_fujitsu_notify(struct acpi_device *device, u32 event);
/* Fujitsu ACPI interface function */
@@ -658,7 +657,6 @@ static struct dmi_system_id fujitsu_dmi_table[] = {
static int acpi_fujitsu_add(struct acpi_device *device)
{
- acpi_status status;
acpi_handle handle;
int result = 0;
int state = 0;
@@ -673,20 +671,10 @@ static int acpi_fujitsu_add(struct acpi_device *device)
sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS);
device->driver_data = fujitsu;
- status = acpi_install_notify_handler(device->handle,
- ACPI_DEVICE_NOTIFY,
- acpi_fujitsu_notify, fujitsu);
-
- if (ACPI_FAILURE(status)) {
- printk(KERN_ERR "Error installing notify handler\n");
- error = -ENODEV;
- goto err_stop;
- }
-
fujitsu->input = input = input_allocate_device();
if (!input) {
error = -ENOMEM;
- goto err_uninstall_notify;
+ goto err_stop;
}
snprintf(fujitsu->phys, sizeof(fujitsu->phys),
@@ -743,9 +731,6 @@ static int acpi_fujitsu_add(struct acpi_device *device)
end:
err_free_input_dev:
input_free_device(input);
-err_uninstall_notify:
- acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY,
- acpi_fujitsu_notify);
err_stop:
return result;
@@ -753,7 +738,6 @@ err_stop:
static int acpi_fujitsu_remove(struct acpi_device *device, int type)
{
- acpi_status status;
struct fujitsu_t *fujitsu = NULL;
if (!device || !acpi_driver_data(device))
@@ -761,10 +745,6 @@ static int acpi_fujitsu_remove(struct acpi_device *device, int type)
fujitsu = acpi_driver_data(device);
- status = acpi_remove_notify_handler(fujitsu->acpi_handle,
- ACPI_DEVICE_NOTIFY,
- acpi_fujitsu_notify);
-
if (!device || !acpi_driver_data(device))
return -EINVAL;
@@ -775,7 +755,7 @@ static int acpi_fujitsu_remove(struct acpi_device *device, int type)
/* Brightness notify */
-static void acpi_fujitsu_notify(acpi_handle handle, u32 event, void *data)
+static void acpi_fujitsu_notify(struct acpi_device *device, u32 event)
{
struct input_dev *input;
int keycode;
@@ -829,15 +809,12 @@ static void acpi_fujitsu_notify(acpi_handle handle, u32 event, void *data)
input_report_key(input, keycode, 0);
input_sync(input);
}
-
- return;
}
/* ACPI device for hotkey handling */
static int acpi_fujitsu_hotkey_add(struct acpi_device *device)
{
- acpi_status status;
acpi_handle handle;
int result = 0;
int state = 0;
@@ -854,17 +831,6 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device)
sprintf(acpi_device_class(device), "%s", ACPI_FUJITSU_CLASS);
device->driver_data = fujitsu_hotkey;
- status = acpi_install_notify_handler(device->handle,
- ACPI_DEVICE_NOTIFY,
- acpi_fujitsu_hotkey_notify,
- fujitsu_hotkey);
-
- if (ACPI_FAILURE(status)) {
- printk(KERN_ERR "Error installing notify handler\n");
- error = -ENODEV;
- goto err_stop;
- }
-
/* kfifo */
spin_lock_init(&fujitsu_hotkey->fifo_lock);
fujitsu_hotkey->fifo =
@@ -879,7 +845,7 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device)
fujitsu_hotkey->input = input = input_allocate_device();
if (!input) {
error = -ENOMEM;
- goto err_uninstall_notify;
+ goto err_free_fifo;
}
snprintf(fujitsu_hotkey->phys, sizeof(fujitsu_hotkey->phys),
@@ -975,9 +941,7 @@ static int acpi_fujitsu_hotkey_add(struct acpi_device *device)
end:
err_free_input_dev:
input_free_device(input);
-err_uninstall_notify:
- acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY,
- acpi_fujitsu_hotkey_notify);
+err_free_fifo:
kfifo_free(fujitsu_hotkey->fifo);
err_stop:
@@ -986,7 +950,6 @@ err_stop:
static int acpi_fujitsu_hotkey_remove(struct acpi_device *device, int type)
{
- acpi_status status;
struct fujitsu_hotkey_t *fujitsu_hotkey = NULL;
if (!device || !acpi_driver_data(device))
@@ -994,10 +957,6 @@ static int acpi_fujitsu_hotkey_remove(struct acpi_device *device, int type)
fujitsu_hotkey = acpi_driver_data(device);
- status = acpi_remove_notify_handler(fujitsu_hotkey->acpi_handle,
- ACPI_DEVICE_NOTIFY,
- acpi_fujitsu_hotkey_notify);
-
fujitsu_hotkey->acpi_handle = NULL;
kfifo_free(fujitsu_hotkey->fifo);
@@ -1005,8 +964,7 @@ static int acpi_fujitsu_hotkey_remove(struct acpi_device *device, int type)
return 0;
}
-static void acpi_fujitsu_hotkey_notify(acpi_handle handle, u32 event,
- void *data)
+static void acpi_fujitsu_hotkey_notify(struct acpi_device *device, u32 event)
{
struct input_dev *input;
int keycode, keycode_r;
@@ -1089,8 +1047,6 @@ static void acpi_fujitsu_hotkey_notify(acpi_handle handle, u32 event,
input_sync(input);
break;
}
-
- return;
}
/* Initialization */
@@ -1107,6 +1063,7 @@ static struct acpi_driver acpi_fujitsu_driver = {
.ops = {
.add = acpi_fujitsu_add,
.remove = acpi_fujitsu_remove,
+ .notify = acpi_fujitsu_notify,
},
};
@@ -1122,6 +1079,7 @@ static struct acpi_driver acpi_fujitsu_hotkey_driver = {
.ops = {
.add = acpi_fujitsu_hotkey_add,
.remove = acpi_fujitsu_hotkey_remove,
+ .notify = acpi_fujitsu_hotkey_notify,
},
};
diff --git a/drivers/platform/x86/panasonic-laptop.c b/drivers/platform/x86/panasonic-laptop.c
index a5ce4bc202e..fe7cf0188ac 100644
--- a/drivers/platform/x86/panasonic-laptop.c
+++ b/drivers/platform/x86/panasonic-laptop.c
@@ -176,6 +176,7 @@ enum SINF_BITS { SINF_NUM_BATTERIES = 0,
static int acpi_pcc_hotkey_add(struct acpi_device *device);
static int acpi_pcc_hotkey_remove(struct acpi_device *device, int type);
static int acpi_pcc_hotkey_resume(struct acpi_device *device);
+static void acpi_pcc_hotkey_notify(struct acpi_device *device, u32 event);
static const struct acpi_device_id pcc_device_ids[] = {
{ "MAT0012", 0},
@@ -194,6 +195,7 @@ static struct acpi_driver acpi_pcc_driver = {
.add = acpi_pcc_hotkey_add,
.remove = acpi_pcc_hotkey_remove,
.resume = acpi_pcc_hotkey_resume,
+ .notify = acpi_pcc_hotkey_notify,
},
};
@@ -271,7 +273,7 @@ static int acpi_pcc_retrieve_biosdata(struct pcc_acpi *pcc, u32 *sinf)
union acpi_object *hkey = NULL;
int i;
- status = acpi_evaluate_object(pcc->handle, METHOD_HKEY_SINF, 0,
+ status = acpi_evaluate_object(pcc->handle, METHOD_HKEY_SINF, NULL,
&buffer);
if (ACPI_FAILURE(status)) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
@@ -527,9 +529,9 @@ static void acpi_pcc_generate_keyinput(struct pcc_acpi *pcc)
return;
}
-static void acpi_pcc_hotkey_notify(acpi_handle handle, u32 event, void *data)
+static void acpi_pcc_hotkey_notify(struct acpi_device *device, u32 event)
{
- struct pcc_acpi *pcc = (struct pcc_acpi *) data;
+ struct pcc_acpi *pcc = acpi_driver_data(device);
switch (event) {
case HKEY_NOTIFY:
@@ -599,7 +601,6 @@ static int acpi_pcc_hotkey_resume(struct acpi_device *device)
static int acpi_pcc_hotkey_add(struct acpi_device *device)
{
- acpi_status status;
struct pcc_acpi *pcc;
int num_sifr, result;
@@ -640,22 +641,11 @@ static int acpi_pcc_hotkey_add(struct acpi_device *device)
goto out_sinf;
}
- /* initialize hotkey input device */
- status = acpi_install_notify_handler(pcc->handle, ACPI_DEVICE_NOTIFY,
- acpi_pcc_hotkey_notify, pcc);
-
- if (ACPI_FAILURE(status)) {
- ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Error installing notify handler\n"));
- result = -ENODEV;
- goto out_input;
- }
-
/* initialize backlight */
pcc->backlight = backlight_device_register("panasonic", NULL, pcc,
&pcc_backlight_ops);
if (IS_ERR(pcc->backlight))
- goto out_notify;
+ goto out_input;
if (!acpi_pcc_retrieve_biosdata(pcc, pcc->sinf)) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
@@ -680,9 +670,6 @@ static int acpi_pcc_hotkey_add(struct acpi_device *device)
out_backlight:
backlight_device_unregister(pcc->backlight);
-out_notify:
- acpi_remove_notify_handler(pcc->handle, ACPI_DEVICE_NOTIFY,
- acpi_pcc_hotkey_notify);
out_input:
input_unregister_device(pcc->input_dev);
/* no need to input_free_device() since core input API refcount and
@@ -723,9 +710,6 @@ static int acpi_pcc_hotkey_remove(struct acpi_device *device, int type)
backlight_device_unregister(pcc->backlight);
- acpi_remove_notify_handler(pcc->handle, ACPI_DEVICE_NOTIFY,
- acpi_pcc_hotkey_notify);
-
input_unregister_device(pcc->input_dev);
/* no need to input_free_device() since core input API refcount and
* free()s the device */
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index a90ec5cb2f2..d3c92d777bd 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -914,7 +914,7 @@ static struct sony_nc_event sony_127_events[] = {
/*
* ACPI callbacks
*/
-static void sony_acpi_notify(acpi_handle handle, u32 event, void *data)
+static void sony_nc_notify(struct acpi_device *device, u32 event)
{
u32 ev = event;
@@ -933,7 +933,7 @@ static void sony_acpi_notify(acpi_handle handle, u32 event, void *data)
struct sony_nc_event *key_event;
if (sony_call_snc_handle(key_handle, 0x200, &result)) {
- dprintk("sony_acpi_notify, unable to decode"
+ dprintk("sony_nc_notify, unable to decode"
" event 0x%.2x 0x%.2x\n", key_handle,
ev);
/* restore the original event */
@@ -968,7 +968,7 @@ static void sony_acpi_notify(acpi_handle handle, u32 event, void *data)
} else
sony_laptop_report_input_event(ev);
- dprintk("sony_acpi_notify, event: 0x%.2x\n", ev);
+ dprintk("sony_nc_notify, event: 0x%.2x\n", ev);
acpi_bus_generate_proc_event(sony_nc_acpi_device, 1, ev);
}
@@ -1276,15 +1276,6 @@ static int sony_nc_add(struct acpi_device *device)
goto outwalk;
}
- status = acpi_install_notify_handler(sony_nc_acpi_handle,
- ACPI_DEVICE_NOTIFY,
- sony_acpi_notify, NULL);
- if (ACPI_FAILURE(status)) {
- printk(KERN_WARNING DRV_PFX "unable to install notify handler (%u)\n", status);
- result = -ENODEV;
- goto outinput;
- }
-
if (acpi_video_backlight_support()) {
printk(KERN_INFO DRV_PFX "brightness ignored, must be "
"controlled by ACPI video driver\n");
@@ -1362,13 +1353,6 @@ static int sony_nc_add(struct acpi_device *device)
if (sony_backlight_device)
backlight_device_unregister(sony_backlight_device);
- status = acpi_remove_notify_handler(sony_nc_acpi_handle,
- ACPI_DEVICE_NOTIFY,
- sony_acpi_notify);
- if (ACPI_FAILURE(status))
- printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
-
- outinput:
sony_laptop_remove_input();
outwalk:
@@ -1378,7 +1362,6 @@ static int sony_nc_add(struct acpi_device *device)
static int sony_nc_remove(struct acpi_device *device, int type)
{
- acpi_status status;
struct sony_nc_value *item;
if (sony_backlight_device)
@@ -1386,12 +1369,6 @@ static int sony_nc_remove(struct acpi_device *device, int type)
sony_nc_acpi_device = NULL;
- status = acpi_remove_notify_handler(sony_nc_acpi_handle,
- ACPI_DEVICE_NOTIFY,
- sony_acpi_notify);
- if (ACPI_FAILURE(status))
- printk(KERN_WARNING DRV_PFX "unable to remove notify handler\n");
-
for (item = sony_nc_values; item->name; ++item) {
device_remove_file(&sony_pf_device->dev, &item->devattr);
}
@@ -1425,6 +1402,7 @@ static struct acpi_driver sony_nc_driver = {
.add = sony_nc_add,
.remove = sony_nc_remove,
.resume = sony_nc_resume,
+ .notify = sony_nc_notify,
},
};
diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c
index 2f269e117b8..043b208d971 100644
--- a/drivers/platform/x86/wmi.c
+++ b/drivers/platform/x86/wmi.c
@@ -81,6 +81,7 @@ static struct wmi_block wmi_blocks;
static int acpi_wmi_remove(struct acpi_device *device, int type);
static int acpi_wmi_add(struct acpi_device *device);
+static void acpi_wmi_notify(struct acpi_device *device, u32 event);
static const struct acpi_device_id wmi_device_ids[] = {
{"PNP0C14", 0},
@@ -96,6 +97,7 @@ static struct acpi_driver acpi_wmi_driver = {
.ops = {
.add = acpi_wmi_add,
.remove = acpi_wmi_remove,
+ .notify = acpi_wmi_notify,
},
};
@@ -643,12 +645,11 @@ acpi_wmi_ec_space_handler(u32 function, acpi_physical_address address,
}
}
-static void acpi_wmi_notify(acpi_handle handle, u32 event, void *data)
+static void acpi_wmi_notify(struct acpi_device *device, u32 event)
{
struct guid_block *block;
struct wmi_block *wblock;
struct list_head *p;
- struct acpi_device *device = data;
list_for_each(p, &wmi_blocks.list) {
wblock = list_entry(p, struct wmi_block, list);
@@ -669,9 +670,6 @@ static void acpi_wmi_notify(acpi_handle handle, u32 event, void *data)
static int acpi_wmi_remove(struct acpi_device *device, int type)
{
- acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY,
- acpi_wmi_notify);
-
acpi_remove_address_space_handler(device->handle,
ACPI_ADR_SPACE_EC, &acpi_wmi_ec_space_handler);
@@ -683,13 +681,6 @@ static int __init acpi_wmi_add(struct acpi_device *device)
acpi_status status;
int result = 0;
- status = acpi_install_notify_handler(device->handle, ACPI_DEVICE_NOTIFY,
- acpi_wmi_notify, device);
- if (ACPI_FAILURE(status)) {
- printk(KERN_ERR PREFIX "Error installing notify handler\n");
- return -ENODEV;
- }
-
status = acpi_install_address_space_handler(device->handle,
ACPI_ADR_SPACE_EC,
&acpi_wmi_ec_space_handler,
diff --git a/drivers/power/pcf50633-charger.c b/drivers/power/pcf50633-charger.c
index 41aec2acbb9..e8b278f7178 100644
--- a/drivers/power/pcf50633-charger.c
+++ b/drivers/power/pcf50633-charger.c
@@ -36,6 +36,8 @@ struct pcf50633_mbc {
struct power_supply usb;
struct power_supply adapter;
+
+ struct delayed_work charging_restart_work;
};
int pcf50633_mbc_usb_curlim_set(struct pcf50633 *pcf, int ma)
@@ -43,6 +45,8 @@ int pcf50633_mbc_usb_curlim_set(struct pcf50633 *pcf, int ma)
struct pcf50633_mbc *mbc = platform_get_drvdata(pcf->mbc_pdev);
int ret = 0;
u8 bits;
+ int charging_start = 1;
+ u8 mbcs2, chgmod;
if (ma >= 1000)
bits = PCF50633_MBCC7_USB_1000mA;
@@ -50,8 +54,10 @@ int pcf50633_mbc_usb_curlim_set(struct pcf50633 *pcf, int ma)
bits = PCF50633_MBCC7_USB_500mA;
else if (ma >= 100)
bits = PCF50633_MBCC7_USB_100mA;
- else
+ else {
bits = PCF50633_MBCC7_USB_SUSPEND;
+ charging_start = 0;
+ }
ret = pcf50633_reg_set_bit_mask(pcf, PCF50633_REG_MBCC7,
PCF50633_MBCC7_USB_MASK, bits);
@@ -60,6 +66,22 @@ int pcf50633_mbc_usb_curlim_set(struct pcf50633 *pcf, int ma)
else
dev_info(pcf->dev, "usb curlim to %d mA\n", ma);
+ /* Manual charging start */
+ mbcs2 = pcf50633_reg_read(pcf, PCF50633_REG_MBCS2);
+ chgmod = (mbcs2 & PCF50633_MBCS2_MBC_MASK);
+
+ /* If chgmod == BATFULL, setting chgena has no effect.
+ * We need to set resume instead.
+ */
+ if (chgmod != PCF50633_MBCS2_MBC_BAT_FULL)
+ pcf50633_reg_set_bit_mask(pcf, PCF50633_REG_MBCC1,
+ PCF50633_MBCC1_CHGENA, PCF50633_MBCC1_CHGENA);
+ else
+ pcf50633_reg_set_bit_mask(pcf, PCF50633_REG_MBCC1,
+ PCF50633_MBCC1_RESUME, PCF50633_MBCC1_RESUME);
+
+ mbc->usb_active = charging_start;
+
power_supply_changed(&mbc->usb);
return ret;
@@ -84,21 +106,6 @@ int pcf50633_mbc_get_status(struct pcf50633 *pcf)
}
EXPORT_SYMBOL_GPL(pcf50633_mbc_get_status);
-void pcf50633_mbc_set_status(struct pcf50633 *pcf, int what, int status)
-{
- struct pcf50633_mbc *mbc = platform_get_drvdata(pcf->mbc_pdev);
-
- if (what & PCF50633_MBC_USB_ONLINE)
- mbc->usb_online = !!status;
- if (what & PCF50633_MBC_USB_ACTIVE)
- mbc->usb_active = !!status;
- if (what & PCF50633_MBC_ADAPTER_ONLINE)
- mbc->adapter_online = !!status;
- if (what & PCF50633_MBC_ADAPTER_ACTIVE)
- mbc->adapter_active = !!status;
-}
-EXPORT_SYMBOL_GPL(pcf50633_mbc_set_status);
-
static ssize_t
show_chgmode(struct device *dev, struct device_attribute *attr, char *buf)
{
@@ -160,10 +167,44 @@ static struct attribute_group mbc_attr_group = {
.attrs = pcf50633_mbc_sysfs_entries,
};
+/* MBC state machine switches into charging mode when the battery voltage
+ * falls below 96% of a battery float voltage. But the voltage drop in Li-ion
+ * batteries is marginal(1~2 %) till about 80% of its capacity - which means,
+ * after a BATFULL, charging won't be restarted until 80%.
+ *
+ * This work_struct function restarts charging at regular intervals to make
+ * sure we don't discharge too much
+ */
+
+static void pcf50633_mbc_charging_restart(struct work_struct *work)
+{
+ struct pcf50633_mbc *mbc;
+ u8 mbcs2, chgmod;
+
+ mbc = container_of(work, struct pcf50633_mbc,
+ charging_restart_work.work);
+
+ mbcs2 = pcf50633_reg_read(mbc->pcf, PCF50633_REG_MBCS2);
+ chgmod = (mbcs2 & PCF50633_MBCS2_MBC_MASK);
+
+ if (chgmod != PCF50633_MBCS2_MBC_BAT_FULL)
+ return;
+
+ /* Restart charging */
+ pcf50633_reg_set_bit_mask(mbc->pcf, PCF50633_REG_MBCC1,
+ PCF50633_MBCC1_RESUME, PCF50633_MBCC1_RESUME);
+ mbc->usb_active = 1;
+ power_supply_changed(&mbc->usb);
+
+ dev_info(mbc->pcf->dev, "Charging restarted\n");
+}
+
static void
pcf50633_mbc_irq_handler(int irq, void *data)
{
struct pcf50633_mbc *mbc = data;
+ int chg_restart_interval =
+ mbc->pcf->pdata->charging_restart_interval;
/* USB */
if (irq == PCF50633_IRQ_USBINS) {
@@ -172,6 +213,7 @@ pcf50633_mbc_irq_handler(int irq, void *data)
mbc->usb_online = 0;
mbc->usb_active = 0;
pcf50633_mbc_usb_curlim_set(mbc->pcf, 0);
+ cancel_delayed_work_sync(&mbc->charging_restart_work);
}
/* Adapter */
@@ -186,7 +228,14 @@ pcf50633_mbc_irq_handler(int irq, void *data)
if (irq == PCF50633_IRQ_BATFULL) {
mbc->usb_active = 0;
mbc->adapter_active = 0;
- }
+
+ if (chg_restart_interval > 0)
+ schedule_delayed_work(&mbc->charging_restart_work,
+ chg_restart_interval);
+ } else if (irq == PCF50633_IRQ_USBLIMON)
+ mbc->usb_active = 0;
+ else if (irq == PCF50633_IRQ_USBLIMOFF)
+ mbc->usb_active = 1;
power_supply_changed(&mbc->usb);
power_supply_changed(&mbc->adapter);
@@ -303,6 +352,9 @@ static int __devinit pcf50633_mbc_probe(struct platform_device *pdev)
return ret;
}
+ INIT_DELAYED_WORK(&mbc->charging_restart_work,
+ pcf50633_mbc_charging_restart);
+
ret = sysfs_create_group(&pdev->dev.kobj, &mbc_attr_group);
if (ret)
dev_err(mbc->pcf->dev, "failed to create sysfs entries\n");
@@ -328,6 +380,8 @@ static int __devexit pcf50633_mbc_remove(struct platform_device *pdev)
power_supply_unregister(&mbc->usb);
power_supply_unregister(&mbc->adapter);
+ cancel_delayed_work_sync(&mbc->charging_restart_work);
+
kfree(mbc);
return 0;
diff --git a/drivers/power/pda_power.c b/drivers/power/pda_power.c
index b56a704409d..a232de6a570 100644
--- a/drivers/power/pda_power.c
+++ b/drivers/power/pda_power.c
@@ -12,11 +12,14 @@
#include <linux/module.h>
#include <linux/platform_device.h>
+#include <linux/err.h>
#include <linux/interrupt.h>
#include <linux/power_supply.h>
#include <linux/pda_power.h>
+#include <linux/regulator/consumer.h>
#include <linux/timer.h>
#include <linux/jiffies.h>
+#include <linux/usb/otg.h>
static inline unsigned int get_irq_flags(struct resource *res)
{
@@ -35,6 +38,11 @@ static struct timer_list supply_timer;
static struct timer_list polling_timer;
static int polling;
+#ifdef CONFIG_USB_OTG_UTILS
+static struct otg_transceiver *transceiver;
+#endif
+static struct regulator *ac_draw;
+
enum {
PDA_PSY_OFFLINE = 0,
PDA_PSY_ONLINE = 1,
@@ -104,18 +112,35 @@ static void update_status(void)
static void update_charger(void)
{
- if (!pdata->set_charge)
- return;
-
- if (new_ac_status > 0) {
- dev_dbg(dev, "charger on (AC)\n");
- pdata->set_charge(PDA_POWER_CHARGE_AC);
- } else if (new_usb_status > 0) {
- dev_dbg(dev, "charger on (USB)\n");
- pdata->set_charge(PDA_POWER_CHARGE_USB);
- } else {
- dev_dbg(dev, "charger off\n");
- pdata->set_charge(0);
+ static int regulator_enabled;
+ int max_uA = pdata->ac_max_uA;
+
+ if (pdata->set_charge) {
+ if (new_ac_status > 0) {
+ dev_dbg(dev, "charger on (AC)\n");
+ pdata->set_charge(PDA_POWER_CHARGE_AC);
+ } else if (new_usb_status > 0) {
+ dev_dbg(dev, "charger on (USB)\n");
+ pdata->set_charge(PDA_POWER_CHARGE_USB);
+ } else {
+ dev_dbg(dev, "charger off\n");
+ pdata->set_charge(0);
+ }
+ } else if (ac_draw) {
+ if (new_ac_status > 0) {
+ regulator_set_current_limit(ac_draw, max_uA, max_uA);
+ if (!regulator_enabled) {
+ dev_dbg(dev, "charger on (AC)\n");
+ regulator_enable(ac_draw);
+ regulator_enabled = 1;
+ }
+ } else {
+ if (regulator_enabled) {
+ dev_dbg(dev, "charger off\n");
+ regulator_disable(ac_draw);
+ regulator_enabled = 0;
+ }
+ }
}
}
@@ -194,6 +219,13 @@ static void polling_timer_func(unsigned long unused)
jiffies + msecs_to_jiffies(pdata->polling_interval));
}
+#ifdef CONFIG_USB_OTG_UTILS
+static int otg_is_usb_online(void)
+{
+ return (transceiver->state == OTG_STATE_B_PERIPHERAL);
+}
+#endif
+
static int pda_power_probe(struct platform_device *pdev)
{
int ret = 0;
@@ -227,6 +259,9 @@ static int pda_power_probe(struct platform_device *pdev)
if (!pdata->polling_interval)
pdata->polling_interval = 2000;
+ if (!pdata->ac_max_uA)
+ pdata->ac_max_uA = 500000;
+
setup_timer(&charger_timer, charger_timer_func, 0);
setup_timer(&supply_timer, supply_timer_func, 0);
@@ -240,6 +275,13 @@ static int pda_power_probe(struct platform_device *pdev)
pda_psy_usb.num_supplicants = pdata->num_supplicants;
}
+ ac_draw = regulator_get(dev, "ac_draw");
+ if (IS_ERR(ac_draw)) {
+ dev_dbg(dev, "couldn't get ac_draw regulator\n");
+ ac_draw = NULL;
+ ret = PTR_ERR(ac_draw);
+ }
+
if (pdata->is_ac_online) {
ret = power_supply_register(&pdev->dev, &pda_psy_ac);
if (ret) {
@@ -261,6 +303,13 @@ static int pda_power_probe(struct platform_device *pdev)
}
}
+#ifdef CONFIG_USB_OTG_UTILS
+ transceiver = otg_get_transceiver();
+ if (transceiver && !pdata->is_usb_online) {
+ pdata->is_usb_online = otg_is_usb_online;
+ }
+#endif
+
if (pdata->is_usb_online) {
ret = power_supply_register(&pdev->dev, &pda_psy_usb);
if (ret) {
@@ -300,10 +349,18 @@ usb_irq_failed:
usb_supply_failed:
if (pdata->is_ac_online && ac_irq)
free_irq(ac_irq->start, &pda_psy_ac);
+#ifdef CONFIG_USB_OTG_UTILS
+ if (transceiver)
+ otg_put_transceiver(transceiver);
+#endif
ac_irq_failed:
if (pdata->is_ac_online)
power_supply_unregister(&pda_psy_ac);
ac_supply_failed:
+ if (ac_draw) {
+ regulator_put(ac_draw);
+ ac_draw = NULL;
+ }
if (pdata->exit)
pdata->exit(dev);
init_failed:
@@ -327,6 +384,14 @@ static int pda_power_remove(struct platform_device *pdev)
power_supply_unregister(&pda_psy_usb);
if (pdata->is_ac_online)
power_supply_unregister(&pda_psy_ac);
+#ifdef CONFIG_USB_OTG_UTILS
+ if (transceiver)
+ otg_put_transceiver(transceiver);
+#endif
+ if (ac_draw) {
+ regulator_put(ac_draw);
+ ac_draw = NULL;
+ }
if (pdata->exit)
pdata->exit(dev);
diff --git a/drivers/serial/max3100.c b/drivers/serial/max3100.c
new file mode 100644
index 00000000000..9fd33e5622b
--- /dev/null
+++ b/drivers/serial/max3100.c
@@ -0,0 +1,927 @@
+/*
+ *
+ * Copyright (C) 2008 Christian Pellegrin <chripell@evolware.org>
+ *
+ * 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.
+ *
+ *
+ * Notes: the MAX3100 doesn't provide an interrupt on CTS so we have
+ * to use polling for flow control. TX empty IRQ is unusable, since
+ * writing conf clears FIFO buffer and we cannot have this interrupt
+ * always asking us for attention.
+ *
+ * Example platform data:
+
+ static struct plat_max3100 max3100_plat_data = {
+ .loopback = 0,
+ .crystal = 0,
+ .poll_time = 100,
+ };
+
+ static struct spi_board_info spi_board_info[] = {
+ {
+ .modalias = "max3100",
+ .platform_data = &max3100_plat_data,
+ .irq = IRQ_EINT12,
+ .max_speed_hz = 5*1000*1000,
+ .chip_select = 0,
+ },
+ };
+
+ * The initial minor number is 209 in the low-density serial port:
+ * mknod /dev/ttyMAX0 c 204 209
+ */
+
+#define MAX3100_MAJOR 204
+#define MAX3100_MINOR 209
+/* 4 MAX3100s should be enough for everyone */
+#define MAX_MAX3100 4
+
+#include <linux/delay.h>
+#include <linux/device.h>
+#include <linux/serial_core.h>
+#include <linux/serial.h>
+#include <linux/spi/spi.h>
+#include <linux/freezer.h>
+
+#include <linux/serial_max3100.h>
+
+#define MAX3100_C (1<<14)
+#define MAX3100_D (0<<14)
+#define MAX3100_W (1<<15)
+#define MAX3100_RX (0<<15)
+
+#define MAX3100_WC (MAX3100_W | MAX3100_C)
+#define MAX3100_RC (MAX3100_RX | MAX3100_C)
+#define MAX3100_WD (MAX3100_W | MAX3100_D)
+#define MAX3100_RD (MAX3100_RX | MAX3100_D)
+#define MAX3100_CMD (3 << 14)
+
+#define MAX3100_T (1<<14)
+#define MAX3100_R (1<<15)
+
+#define MAX3100_FEN (1<<13)
+#define MAX3100_SHDN (1<<12)
+#define MAX3100_TM (1<<11)
+#define MAX3100_RM (1<<10)
+#define MAX3100_PM (1<<9)
+#define MAX3100_RAM (1<<8)
+#define MAX3100_IR (1<<7)
+#define MAX3100_ST (1<<6)
+#define MAX3100_PE (1<<5)
+#define MAX3100_L (1<<4)
+#define MAX3100_BAUD (0xf)
+
+#define MAX3100_TE (1<<10)
+#define MAX3100_RAFE (1<<10)
+#define MAX3100_RTS (1<<9)
+#define MAX3100_CTS (1<<9)
+#define MAX3100_PT (1<<8)
+#define MAX3100_DATA (0xff)
+
+#define MAX3100_RT (MAX3100_R | MAX3100_T)
+#define MAX3100_RTC (MAX3100_RT | MAX3100_CTS | MAX3100_RAFE)
+
+/* the following simulate a status reg for ignore_status_mask */
+#define MAX3100_STATUS_PE 1
+#define MAX3100_STATUS_FE 2
+#define MAX3100_STATUS_OE 4
+
+struct max3100_port {
+ struct uart_port port;
+ struct spi_device *spi;
+
+ int cts; /* last CTS received for flow ctrl */
+ int tx_empty; /* last TX empty bit */
+
+ spinlock_t conf_lock; /* shared data */
+ int conf_commit; /* need to make changes */
+ int conf; /* configuration for the MAX31000
+ * (bits 0-7, bits 8-11 are irqs) */
+ int rts_commit; /* need to change rts */
+ int rts; /* rts status */
+ int baud; /* current baud rate */
+
+ int parity; /* keeps track if we should send parity */
+#define MAX3100_PARITY_ON 1
+#define MAX3100_PARITY_ODD 2
+#define MAX3100_7BIT 4
+ int rx_enabled; /* if we should rx chars */
+
+ int irq; /* irq assigned to the max3100 */
+
+ int minor; /* minor number */
+ int crystal; /* 1 if 3.6864Mhz crystal 0 for 1.8432 */
+ int loopback; /* 1 if we are in loopback mode */
+
+ /* for handling irqs: need workqueue since we do spi_sync */
+ struct workqueue_struct *workqueue;
+ struct work_struct work;
+ /* set to 1 to make the workhandler exit as soon as possible */
+ int force_end_work;
+ /* need to know we are suspending to avoid deadlock on workqueue */
+ int suspending;
+
+ /* hook for suspending MAX3100 via dedicated pin */
+ void (*max3100_hw_suspend) (int suspend);
+
+ /* poll time (in ms) for ctrl lines */
+ int poll_time;
+ /* and its timer */
+ struct timer_list timer;
+};
+
+static struct max3100_port *max3100s[MAX_MAX3100]; /* the chips */
+static DEFINE_MUTEX(max3100s_lock); /* race on probe */
+
+static int max3100_do_parity(struct max3100_port *s, u16 c)
+{
+ int parity;
+
+ if (s->parity & MAX3100_PARITY_ODD)
+ parity = 1;
+ else
+ parity = 0;
+
+ if (s->parity & MAX3100_7BIT)
+ c &= 0x7f;
+ else
+ c &= 0xff;
+
+ parity = parity ^ (hweight8(c) & 1);
+ return parity;
+}
+
+static int max3100_check_parity(struct max3100_port *s, u16 c)
+{
+ return max3100_do_parity(s, c) == ((c >> 8) & 1);
+}
+
+static void max3100_calc_parity(struct max3100_port *s, u16 *c)
+{
+ if (s->parity & MAX3100_7BIT)
+ *c &= 0x7f;
+ else
+ *c &= 0xff;
+
+ if (s->parity & MAX3100_PARITY_ON)
+ *c |= max3100_do_parity(s, *c) << 8;
+}
+
+static void max3100_work(struct work_struct *w);
+
+static void max3100_dowork(struct max3100_port *s)
+{
+ if (!s->force_end_work && !work_pending(&s->work) &&
+ !freezing(current) && !s->suspending)
+ queue_work(s->workqueue, &s->work);
+}
+
+static void max3100_timeout(unsigned long data)
+{
+ struct max3100_port *s = (struct max3100_port *)data;
+
+ if (s->port.info) {
+ max3100_dowork(s);
+ mod_timer(&s->timer, jiffies + s->poll_time);
+ }
+}
+
+static int max3100_sr(struct max3100_port *s, u16 tx, u16 *rx)
+{
+ struct spi_message message;
+ u16 etx, erx;
+ int status;
+ struct spi_transfer tran = {
+ .tx_buf = &etx,
+ .rx_buf = &erx,
+ .len = 2,
+ };
+
+ etx = cpu_to_be16(tx);
+ spi_message_init(&message);
+ spi_message_add_tail(&tran, &message);
+ status = spi_sync(s->spi, &message);
+ if (status) {
+ dev_warn(&s->spi->dev, "error while calling spi_sync\n");
+ return -EIO;
+ }
+ *rx = be16_to_cpu(erx);
+ s->tx_empty = (*rx & MAX3100_T) > 0;
+ dev_dbg(&s->spi->dev, "%04x - %04x\n", tx, *rx);
+ return 0;
+}
+
+static int max3100_handlerx(struct max3100_port *s, u16 rx)
+{
+ unsigned int ch, flg, status = 0;
+ int ret = 0, cts;
+
+ if (rx & MAX3100_R && s->rx_enabled) {
+ dev_dbg(&s->spi->dev, "%s\n", __func__);
+ ch = rx & (s->parity & MAX3100_7BIT ? 0x7f : 0xff);
+ if (rx & MAX3100_RAFE) {
+ s->port.icount.frame++;
+ flg = TTY_FRAME;
+ status |= MAX3100_STATUS_FE;
+ } else {
+ if (s->parity & MAX3100_PARITY_ON) {
+ if (max3100_check_parity(s, rx)) {
+ s->port.icount.rx++;
+ flg = TTY_NORMAL;
+ } else {
+ s->port.icount.parity++;
+ flg = TTY_PARITY;
+ status |= MAX3100_STATUS_PE;
+ }
+ } else {
+ s->port.icount.rx++;
+ flg = TTY_NORMAL;
+ }
+ }
+ uart_insert_char(&s->port, status, MAX3100_STATUS_OE, ch, flg);
+ ret = 1;
+ }
+
+ cts = (rx & MAX3100_CTS) > 0;
+ if (s->cts != cts) {
+ s->cts = cts;
+ uart_handle_cts_change(&s->port, cts ? TIOCM_CTS : 0);
+ }
+
+ return ret;
+}
+
+static void max3100_work(struct work_struct *w)
+{
+ struct max3100_port *s = container_of(w, struct max3100_port, work);
+ int rxchars;
+ u16 tx, rx;
+ int conf, cconf, rts, crts;
+ struct circ_buf *xmit = &s->port.info->xmit;
+
+ dev_dbg(&s->spi->dev, "%s\n", __func__);
+
+ rxchars = 0;
+ do {
+ spin_lock(&s->conf_lock);
+ conf = s->conf;
+ cconf = s->conf_commit;
+ s->conf_commit = 0;
+ rts = s->rts;
+ crts = s->rts_commit;
+ s->rts_commit = 0;
+ spin_unlock(&s->conf_lock);
+ if (cconf)
+ max3100_sr(s, MAX3100_WC | conf, &rx);
+ if (crts) {
+ max3100_sr(s, MAX3100_WD | MAX3100_TE |
+ (s->rts ? MAX3100_RTS : 0), &rx);
+ rxchars += max3100_handlerx(s, rx);
+ }
+
+ max3100_sr(s, MAX3100_RD, &rx);
+ rxchars += max3100_handlerx(s, rx);
+
+ if (rx & MAX3100_T) {
+ tx = 0xffff;
+ if (s->port.x_char) {
+ tx = s->port.x_char;
+ s->port.icount.tx++;
+ s->port.x_char = 0;
+ } else if (!uart_circ_empty(xmit) &&
+ !uart_tx_stopped(&s->port)) {
+ tx = xmit->buf[xmit->tail];
+ xmit->tail = (xmit->tail + 1) &
+ (UART_XMIT_SIZE - 1);
+ s->port.icount.tx++;
+ }
+ if (tx != 0xffff) {
+ max3100_calc_parity(s, &tx);
+ tx |= MAX3100_WD | (s->rts ? MAX3100_RTS : 0);
+ max3100_sr(s, tx, &rx);
+ rxchars += max3100_handlerx(s, rx);
+ }
+ }
+
+ if (rxchars > 16 && s->port.info->port.tty != NULL) {
+ tty_flip_buffer_push(s->port.info->port.tty);
+ rxchars = 0;
+ }
+ if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
+ uart_write_wakeup(&s->port);
+
+ } while (!s->force_end_work &&
+ !freezing(current) &&
+ ((rx & MAX3100_R) ||
+ (!uart_circ_empty(xmit) &&
+ !uart_tx_stopped(&s->port))));
+
+ if (rxchars > 0 && s->port.info->port.tty != NULL)
+ tty_flip_buffer_push(s->port.info->port.tty);
+}
+
+static irqreturn_t max3100_irq(int irqno, void *dev_id)
+{
+ struct max3100_port *s = dev_id;
+
+ dev_dbg(&s->spi->dev, "%s\n", __func__);
+
+ max3100_dowork(s);
+ return IRQ_HANDLED;
+}
+
+static void max3100_enable_ms(struct uart_port *port)
+{
+ struct max3100_port *s = container_of(port,
+ struct max3100_port,
+ port);
+
+ if (s->poll_time > 0)
+ mod_timer(&s->timer, jiffies);
+ dev_dbg(&s->spi->dev, "%s\n", __func__);
+}
+
+static void max3100_start_tx(struct uart_port *port)
+{
+ struct max3100_port *s = container_of(port,
+ struct max3100_port,
+ port);
+
+ dev_dbg(&s->spi->dev, "%s\n", __func__);
+
+ max3100_dowork(s);
+}
+
+static void max3100_stop_rx(struct uart_port *port)
+{
+ struct max3100_port *s = container_of(port,
+ struct max3100_port,
+ port);
+
+ dev_dbg(&s->spi->dev, "%s\n", __func__);
+
+ s->rx_enabled = 0;
+ spin_lock(&s->conf_lock);
+ s->conf &= ~MAX3100_RM;
+ s->conf_commit = 1;
+ spin_unlock(&s->conf_lock);
+ max3100_dowork(s);
+}
+
+static unsigned int max3100_tx_empty(struct uart_port *port)
+{
+ struct max3100_port *s = container_of(port,
+ struct max3100_port,
+ port);
+
+ dev_dbg(&s->spi->dev, "%s\n", __func__);
+
+ /* may not be truly up-to-date */
+ max3100_dowork(s);
+ return s->tx_empty;
+}
+
+static unsigned int max3100_get_mctrl(struct uart_port *port)
+{
+ struct max3100_port *s = container_of(port,
+ struct max3100_port,
+ port);
+
+ dev_dbg(&s->spi->dev, "%s\n", __func__);
+
+ /* may not be truly up-to-date */
+ max3100_dowork(s);
+ /* always assert DCD and DSR since these lines are not wired */
+ return (s->cts ? TIOCM_CTS : 0) | TIOCM_DSR | TIOCM_CAR;
+}
+
+static void max3100_set_mctrl(struct uart_port *port, unsigned int mctrl)
+{
+ struct max3100_port *s = container_of(port,
+ struct max3100_port,
+ port);
+ int rts;
+
+ dev_dbg(&s->spi->dev, "%s\n", __func__);
+
+ rts = (mctrl & TIOCM_RTS) > 0;
+
+ spin_lock(&s->conf_lock);
+ if (s->rts != rts) {
+ s->rts = rts;
+ s->rts_commit = 1;
+ max3100_dowork(s);
+ }
+ spin_unlock(&s->conf_lock);
+}
+
+static void
+max3100_set_termios(struct uart_port *port, struct ktermios *termios,
+ struct ktermios *old)
+{
+ struct max3100_port *s = container_of(port,
+ struct max3100_port,
+ port);
+ int baud = 0;
+ unsigned cflag;
+ u32 param_new, param_mask, parity = 0;
+ struct tty_struct *tty = s->port.info->port.tty;
+
+ dev_dbg(&s->spi->dev, "%s\n", __func__);
+ if (!tty)
+ return;
+
+ cflag = termios->c_cflag;
+ param_new = 0;
+ param_mask = 0;
+
+ baud = tty_get_baud_rate(tty);
+ param_new = s->conf & MAX3100_BAUD;
+ switch (baud) {
+ case 300:
+ if (s->crystal)
+ baud = s->baud;
+ else
+ param_new = 15;
+ break;
+ case 600:
+ param_new = 14 + s->crystal;
+ break;
+ case 1200:
+ param_new = 13 + s->crystal;
+ break;
+ case 2400:
+ param_new = 12 + s->crystal;
+ break;
+ case 4800:
+ param_new = 11 + s->crystal;
+ break;
+ case 9600:
+ param_new = 10 + s->crystal;
+ break;
+ case 19200:
+ param_new = 9 + s->crystal;
+ break;
+ case 38400:
+ param_new = 8 + s->crystal;
+ break;
+ case 57600:
+ param_new = 1 + s->crystal;
+ break;
+ case 115200:
+ param_new = 0 + s->crystal;
+ break;
+ case 230400:
+ if (s->crystal)
+ param_new = 0;
+ else
+ baud = s->baud;
+ break;
+ default:
+ baud = s->baud;
+ }
+ tty_encode_baud_rate(tty, baud, baud);
+ s->baud = baud;
+ param_mask |= MAX3100_BAUD;
+
+ if ((cflag & CSIZE) == CS8) {
+ param_new &= ~MAX3100_L;
+ parity &= ~MAX3100_7BIT;
+ } else {
+ param_new |= MAX3100_L;
+ parity |= MAX3100_7BIT;
+ cflag = (cflag & ~CSIZE) | CS7;
+ }
+ param_mask |= MAX3100_L;
+
+ if (cflag & CSTOPB)
+ param_new |= MAX3100_ST;
+ else
+ param_new &= ~MAX3100_ST;
+ param_mask |= MAX3100_ST;
+
+ if (cflag & PARENB) {
+ param_new |= MAX3100_PE;
+ parity |= MAX3100_PARITY_ON;
+ } else {
+ param_new &= ~MAX3100_PE;
+ parity &= ~MAX3100_PARITY_ON;
+ }
+ param_mask |= MAX3100_PE;
+
+ if (cflag & PARODD)
+ parity |= MAX3100_PARITY_ODD;
+ else
+ parity &= ~MAX3100_PARITY_ODD;
+
+ /* mask termios capabilities we don't support */
+ cflag &= ~CMSPAR;
+ termios->c_cflag = cflag;
+
+ s->port.ignore_status_mask = 0;
+ if (termios->c_iflag & IGNPAR)
+ s->port.ignore_status_mask |=
+ MAX3100_STATUS_PE | MAX3100_STATUS_FE |
+ MAX3100_STATUS_OE;
+
+ /* we are sending char from a workqueue so enable */
+ s->port.info->port.tty->low_latency = 1;
+
+ if (s->poll_time > 0)
+ del_timer_sync(&s->timer);
+
+ uart_update_timeout(port, termios->c_cflag, baud);
+
+ spin_lock(&s->conf_lock);
+ s->conf = (s->conf & ~param_mask) | (param_new & param_mask);
+ s->conf_commit = 1;
+ s->parity = parity;
+ spin_unlock(&s->conf_lock);
+ max3100_dowork(s);
+
+ if (UART_ENABLE_MS(&s->port, termios->c_cflag))
+ max3100_enable_ms(&s->port);
+}
+
+static void max3100_shutdown(struct uart_port *port)
+{
+ struct max3100_port *s = container_of(port,
+ struct max3100_port,
+ port);
+
+ dev_dbg(&s->spi->dev, "%s\n", __func__);
+
+ if (s->suspending)
+ return;
+
+ s->force_end_work = 1;
+
+ if (s->poll_time > 0)
+ del_timer_sync(&s->timer);
+
+ if (s->workqueue) {
+ flush_workqueue(s->workqueue);
+ destroy_workqueue(s->workqueue);
+ s->workqueue = NULL;
+ }
+ if (s->irq)
+ free_irq(s->irq, s);
+
+ /* set shutdown mode to save power */
+ if (s->max3100_hw_suspend)
+ s->max3100_hw_suspend(1);
+ else {
+ u16 tx, rx;
+
+ tx = MAX3100_WC | MAX3100_SHDN;
+ max3100_sr(s, tx, &rx);
+ }
+}
+
+static int max3100_startup(struct uart_port *port)
+{
+ struct max3100_port *s = container_of(port,
+ struct max3100_port,
+ port);
+ char b[12];
+
+ dev_dbg(&s->spi->dev, "%s\n", __func__);
+
+ s->conf = MAX3100_RM;
+ s->baud = s->crystal ? 230400 : 115200;
+ s->rx_enabled = 1;
+
+ if (s->suspending)
+ return 0;
+
+ s->force_end_work = 0;
+ s->parity = 0;
+ s->rts = 0;
+
+ sprintf(b, "max3100-%d", s->minor);
+ s->workqueue = create_freezeable_workqueue(b);
+ if (!s->workqueue) {
+ dev_warn(&s->spi->dev, "cannot create workqueue\n");
+ return -EBUSY;
+ }
+ INIT_WORK(&s->work, max3100_work);
+
+ if (request_irq(s->irq, max3100_irq,
+ IRQF_TRIGGER_FALLING, "max3100", s) < 0) {
+ dev_warn(&s->spi->dev, "cannot allocate irq %d\n", s->irq);
+ s->irq = 0;
+ destroy_workqueue(s->workqueue);
+ s->workqueue = NULL;
+ return -EBUSY;
+ }
+
+ if (s->loopback) {
+ u16 tx, rx;
+ tx = 0x4001;
+ max3100_sr(s, tx, &rx);
+ }
+
+ if (s->max3100_hw_suspend)
+ s->max3100_hw_suspend(0);
+ s->conf_commit = 1;
+ max3100_dowork(s);
+ /* wait for clock to settle */
+ msleep(50);
+
+ max3100_enable_ms(&s->port);
+
+ return 0;
+}
+
+static const char *max3100_type(struct uart_port *port)
+{
+ struct max3100_port *s = container_of(port,
+ struct max3100_port,
+ port);
+
+ dev_dbg(&s->spi->dev, "%s\n", __func__);
+
+ return s->port.type == PORT_MAX3100 ? "MAX3100" : NULL;
+}
+
+static void max3100_release_port(struct uart_port *port)
+{
+ struct max3100_port *s = container_of(port,
+ struct max3100_port,
+ port);
+
+ dev_dbg(&s->spi->dev, "%s\n", __func__);
+}
+
+static void max3100_config_port(struct uart_port *port, int flags)
+{
+ struct max3100_port *s = container_of(port,
+ struct max3100_port,
+ port);
+
+ dev_dbg(&s->spi->dev, "%s\n", __func__);
+
+ if (flags & UART_CONFIG_TYPE)
+ s->port.type = PORT_MAX3100;
+}
+
+static int max3100_verify_port(struct uart_port *port,
+ struct serial_struct *ser)
+{
+ struct max3100_port *s = container_of(port,
+ struct max3100_port,
+ port);
+ int ret = -EINVAL;
+
+ dev_dbg(&s->spi->dev, "%s\n", __func__);
+
+ if (ser->type == PORT_UNKNOWN || ser->type == PORT_MAX3100)
+ ret = 0;
+ return ret;
+}
+
+static void max3100_stop_tx(struct uart_port *port)
+{
+ struct max3100_port *s = container_of(port,
+ struct max3100_port,
+ port);
+
+ dev_dbg(&s->spi->dev, "%s\n", __func__);
+}
+
+static int max3100_request_port(struct uart_port *port)
+{
+ struct max3100_port *s = container_of(port,
+ struct max3100_port,
+ port);
+
+ dev_dbg(&s->spi->dev, "%s\n", __func__);
+ return 0;
+}
+
+static void max3100_break_ctl(struct uart_port *port, int break_state)
+{
+ struct max3100_port *s = container_of(port,
+ struct max3100_port,
+ port);
+
+ dev_dbg(&s->spi->dev, "%s\n", __func__);
+}
+
+static struct uart_ops max3100_ops = {
+ .tx_empty = max3100_tx_empty,
+ .set_mctrl = max3100_set_mctrl,
+ .get_mctrl = max3100_get_mctrl,
+ .stop_tx = max3100_stop_tx,
+ .start_tx = max3100_start_tx,
+ .stop_rx = max3100_stop_rx,
+ .enable_ms = max3100_enable_ms,
+ .break_ctl = max3100_break_ctl,
+ .startup = max3100_startup,
+ .shutdown = max3100_shutdown,
+ .set_termios = max3100_set_termios,
+ .type = max3100_type,
+ .release_port = max3100_release_port,
+ .request_port = max3100_request_port,
+ .config_port = max3100_config_port,
+ .verify_port = max3100_verify_port,
+};
+
+static struct uart_driver max3100_uart_driver = {
+ .owner = THIS_MODULE,
+ .driver_name = "ttyMAX",
+ .dev_name = "ttyMAX",
+ .major = MAX3100_MAJOR,
+ .minor = MAX3100_MINOR,
+ .nr = MAX_MAX3100,
+};
+static int uart_driver_registered;
+
+static int __devinit max3100_probe(struct spi_device *spi)
+{
+ int i, retval;
+ struct plat_max3100 *pdata;
+ u16 tx, rx;
+
+ mutex_lock(&max3100s_lock);
+
+ if (!uart_driver_registered) {
+ uart_driver_registered = 1;
+ retval = uart_register_driver(&max3100_uart_driver);
+ if (retval) {
+ printk(KERN_ERR "Couldn't register max3100 uart driver\n");
+ mutex_unlock(&max3100s_lock);
+ return retval;
+ }
+ }
+
+ for (i = 0; i < MAX_MAX3100; i++)
+ if (!max3100s[i])
+ break;
+ if (i == MAX_MAX3100) {
+ dev_warn(&spi->dev, "too many MAX3100 chips\n");
+ mutex_unlock(&max3100s_lock);
+ return -ENOMEM;
+ }
+
+ max3100s[i] = kzalloc(sizeof(struct max3100_port), GFP_KERNEL);
+ if (!max3100s[i]) {
+ dev_warn(&spi->dev,
+ "kmalloc for max3100 structure %d failed!\n", i);
+ mutex_unlock(&max3100s_lock);
+ return -ENOMEM;
+ }
+ max3100s[i]->spi = spi;
+ max3100s[i]->irq = spi->irq;
+ spin_lock_init(&max3100s[i]->conf_lock);
+ dev_set_drvdata(&spi->dev, max3100s[i]);
+ pdata = spi->dev.platform_data;
+ max3100s[i]->crystal = pdata->crystal;
+ max3100s[i]->loopback = pdata->loopback;
+ max3100s[i]->poll_time = pdata->poll_time * HZ / 1000;
+ if (pdata->poll_time > 0 && max3100s[i]->poll_time == 0)
+ max3100s[i]->poll_time = 1;
+ max3100s[i]->max3100_hw_suspend = pdata->max3100_hw_suspend;
+ max3100s[i]->minor = i;
+ init_timer(&max3100s[i]->timer);
+ max3100s[i]->timer.function = max3100_timeout;
+ max3100s[i]->timer.data = (unsigned long) max3100s[i];
+
+ dev_dbg(&spi->dev, "%s: adding port %d\n", __func__, i);
+ max3100s[i]->port.irq = max3100s[i]->irq;
+ max3100s[i]->port.uartclk = max3100s[i]->crystal ? 3686400 : 1843200;
+ max3100s[i]->port.fifosize = 16;
+ max3100s[i]->port.ops = &max3100_ops;
+ max3100s[i]->port.flags = UPF_SKIP_TEST | UPF_BOOT_AUTOCONF;
+ max3100s[i]->port.line = i;
+ max3100s[i]->port.type = PORT_MAX3100;
+ max3100s[i]->port.dev = &spi->dev;
+ retval = uart_add_one_port(&max3100_uart_driver, &max3100s[i]->port);
+ if (retval < 0)
+ dev_warn(&spi->dev,
+ "uart_add_one_port failed for line %d with error %d\n",
+ i, retval);
+
+ /* set shutdown mode to save power. Will be woken-up on open */
+ if (max3100s[i]->max3100_hw_suspend)
+ max3100s[i]->max3100_hw_suspend(1);
+ else {
+ tx = MAX3100_WC | MAX3100_SHDN;
+ max3100_sr(max3100s[i], tx, &rx);
+ }
+ mutex_unlock(&max3100s_lock);
+ return 0;
+}
+
+static int __devexit max3100_remove(struct spi_device *spi)
+{
+ struct max3100_port *s = dev_get_drvdata(&spi->dev);
+ int i;
+
+ mutex_lock(&max3100s_lock);
+
+ /* find out the index for the chip we are removing */
+ for (i = 0; i < MAX_MAX3100; i++)
+ if (max3100s[i] == s)
+ break;
+
+ dev_dbg(&spi->dev, "%s: removing port %d\n", __func__, i);
+ uart_remove_one_port(&max3100_uart_driver, &max3100s[i]->port);
+ kfree(max3100s[i]);
+ max3100s[i] = NULL;
+
+ /* check if this is the last chip we have */
+ for (i = 0; i < MAX_MAX3100; i++)
+ if (max3100s[i]) {
+ mutex_unlock(&max3100s_lock);
+ return 0;
+ }
+ pr_debug("removing max3100 driver\n");
+ uart_unregister_driver(&max3100_uart_driver);
+
+ mutex_unlock(&max3100s_lock);
+ return 0;
+}
+
+#ifdef CONFIG_PM
+
+static int max3100_suspend(struct spi_device *spi, pm_message_t state)
+{
+ struct max3100_port *s = dev_get_drvdata(&spi->dev);
+
+ dev_dbg(&s->spi->dev, "%s\n", __func__);
+
+ disable_irq(s->irq);
+
+ s->suspending = 1;
+ uart_suspend_port(&max3100_uart_driver, &s->port);
+
+ if (s->max3100_hw_suspend)
+ s->max3100_hw_suspend(1);
+ else {
+ /* no HW suspend, so do SW one */
+ u16 tx, rx;
+
+ tx = MAX3100_WC | MAX3100_SHDN;
+ max3100_sr(s, tx, &rx);
+ }
+ return 0;
+}
+
+static int max3100_resume(struct spi_device *spi)
+{
+ struct max3100_port *s = dev_get_drvdata(&spi->dev);
+
+ dev_dbg(&s->spi->dev, "%s\n", __func__);
+
+ if (s->max3100_hw_suspend)
+ s->max3100_hw_suspend(0);
+ uart_resume_port(&max3100_uart_driver, &s->port);
+ s->suspending = 0;
+
+ enable_irq(s->irq);
+
+ s->conf_commit = 1;
+ if (s->workqueue)
+ max3100_dowork(s);
+
+ return 0;
+}
+
+#else
+#define max3100_suspend NULL
+#define max3100_resume NULL
+#endif
+
+static struct spi_driver max3100_driver = {
+ .driver = {
+ .name = "max3100",
+ .bus = &spi_bus_type,
+ .owner = THIS_MODULE,
+ },
+
+ .probe = max3100_probe,
+ .remove = __devexit_p(max3100_remove),
+ .suspend = max3100_suspend,
+ .resume = max3100_resume,
+};
+
+static int __init max3100_init(void)
+{
+ return spi_register_driver(&max3100_driver);
+}
+module_init(max3100_init);
+
+static void __exit max3100_exit(void)
+{
+ spi_unregister_driver(&max3100_driver);
+}
+module_exit(max3100_exit);
+
+MODULE_DESCRIPTION("MAX3100 driver");
+MODULE_AUTHOR("Christian Pellegrin <chripell@evolware.org>");
+MODULE_LICENSE("GPL");
diff --git a/drivers/serial/sunsu.c b/drivers/serial/sunsu.c
index a4dc79b1d7a..47c6837850b 100644
--- a/drivers/serial/sunsu.c
+++ b/drivers/serial/sunsu.c
@@ -1178,7 +1178,7 @@ static struct uart_driver sunsu_reg = {
.major = TTY_MAJOR,
};
-static int __init sunsu_kbd_ms_init(struct uart_sunsu_port *up)
+static int __devinit sunsu_kbd_ms_init(struct uart_sunsu_port *up)
{
int quot, baud;
#ifdef CONFIG_SERIO
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index 4ed228a8994..bb5e6f67157 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -280,7 +280,7 @@ static int ohci_hcd_at91_drv_probe(struct platform_device *pdev)
* are always powered while this driver is active, and use
* active-low power switches.
*/
- for (i = 0; i < pdata->ports; i++) {
+ for (i = 0; i < ARRAY_SIZE(pdata->vbus_pin); i++) {
if (pdata->vbus_pin[i] <= 0)
continue;
gpio_request(pdata->vbus_pin[i], "ohci_vbus");
@@ -298,7 +298,7 @@ static int ohci_hcd_at91_drv_remove(struct platform_device *pdev)
int i;
if (pdata) {
- for (i = 0; i < pdata->ports; i++) {
+ for (i = 0; i < ARRAY_SIZE(pdata->vbus_pin); i++) {
if (pdata->vbus_pin[i] <= 0)
continue;
gpio_direction_output(pdata->vbus_pin[i], 1);