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-rw-r--r--drivers/s390/block/dcssblk.c14
-rw-r--r--drivers/s390/char/con3215.c8
-rw-r--r--drivers/s390/char/con3270.c13
-rw-r--r--drivers/s390/char/raw3270.c26
-rw-r--r--drivers/s390/char/raw3270.h3
-rw-r--r--drivers/s390/char/sclp_early.c31
-rw-r--r--drivers/s390/cio/airq.c66
-rw-r--r--drivers/s390/cio/ccwgroup.c26
-rw-r--r--drivers/s390/cio/chsc.c1
-rw-r--r--drivers/s390/cio/chsc_sch.c3
-rw-r--r--drivers/s390/cio/cio.c52
-rw-r--r--drivers/s390/cio/device.c52
-rw-r--r--drivers/s390/cio/qdio.h14
-rw-r--r--drivers/s390/cio/qdio_main.c2
-rw-r--r--drivers/s390/crypto/zcrypt_msgtype6.c24
-rw-r--r--drivers/s390/kvm/virtio_ccw.c323
-rw-r--r--drivers/s390/net/qeth_core.h7
-rw-r--r--drivers/s390/net/qeth_core_main.c13
-rw-r--r--drivers/s390/net/qeth_l2_main.c9
-rw-r--r--drivers/s390/net/qeth_l3_main.c3
20 files changed, 542 insertions, 148 deletions
diff --git a/drivers/s390/block/dcssblk.c b/drivers/s390/block/dcssblk.c
index ebf41e228e55..ee0e85abe1fd 100644
--- a/drivers/s390/block/dcssblk.c
+++ b/drivers/s390/block/dcssblk.c
@@ -304,12 +304,6 @@ dcssblk_load_segment(char *name, struct segment_info **seg_info)
return rc;
}
-static void dcssblk_unregister_callback(struct device *dev)
-{
- device_unregister(dev);
- put_device(dev);
-}
-
/*
* device attribute for switching shared/nonshared (exclusive)
* operation (show + store)
@@ -397,7 +391,13 @@ removeseg:
blk_cleanup_queue(dev_info->dcssblk_queue);
dev_info->gd->queue = NULL;
put_disk(dev_info->gd);
- rc = device_schedule_callback(dev, dcssblk_unregister_callback);
+ up_write(&dcssblk_devices_sem);
+
+ if (device_remove_file_self(dev, attr)) {
+ device_unregister(dev);
+ put_device(dev);
+ }
+ return rc;
out:
up_write(&dcssblk_devices_sem);
return rc;
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index eb5d22795c47..5af7f0bd6125 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -922,7 +922,7 @@ static int __init con3215_init(void)
raw3215_freelist = req;
}
- cdev = ccw_device_probe_console();
+ cdev = ccw_device_create_console(&raw3215_ccw_driver);
if (IS_ERR(cdev))
return -ENODEV;
@@ -932,6 +932,12 @@ static int __init con3215_init(void)
cdev->handler = raw3215_irq;
raw->flags |= RAW3215_FIXED;
+ if (ccw_device_enable_console(cdev)) {
+ ccw_device_destroy_console(cdev);
+ raw3215_free_info(raw);
+ raw3215[0] = NULL;
+ return -ENODEV;
+ }
/* Request the console irq */
if (raw3215_startup(raw) != 0) {
diff --git a/drivers/s390/char/con3270.c b/drivers/s390/char/con3270.c
index 699fd3e363df..75ffe9980c3e 100644
--- a/drivers/s390/char/con3270.c
+++ b/drivers/s390/char/con3270.c
@@ -7,6 +7,7 @@
* Copyright IBM Corp. 2003, 2009
*/
+#include <linux/module.h>
#include <linux/console.h>
#include <linux/init.h>
#include <linux/interrupt.h>
@@ -30,6 +31,9 @@
static struct raw3270_fn con3270_fn;
+static bool auto_update = 1;
+module_param(auto_update, bool, 0);
+
/*
* Main 3270 console view data structure.
*/
@@ -204,6 +208,8 @@ con3270_update(struct con3270 *cp)
struct string *s, *n;
int rc;
+ if (!auto_update && !raw3270_view_active(&cp->view))
+ return;
if (cp->view.dev)
raw3270_activate_view(&cp->view);
@@ -529,6 +535,7 @@ con3270_flush(void)
if (!cp->view.dev)
return;
raw3270_pm_unfreeze(&cp->view);
+ raw3270_activate_view(&cp->view);
spin_lock_irqsave(&cp->view.lock, flags);
con3270_wait_write(cp);
cp->nr_up = 0;
@@ -576,7 +583,6 @@ static struct console con3270 = {
static int __init
con3270_init(void)
{
- struct ccw_device *cdev;
struct raw3270 *rp;
void *cbuf;
int i;
@@ -591,10 +597,7 @@ con3270_init(void)
cpcmd("TERM AUTOCR OFF", NULL, 0, NULL);
}
- cdev = ccw_device_probe_console();
- if (IS_ERR(cdev))
- return -ENODEV;
- rp = raw3270_setup_console(cdev);
+ rp = raw3270_setup_console();
if (IS_ERR(rp))
return PTR_ERR(rp);
diff --git a/drivers/s390/char/raw3270.c b/drivers/s390/char/raw3270.c
index 2cdec21e8924..9f849df4381e 100644
--- a/drivers/s390/char/raw3270.c
+++ b/drivers/s390/char/raw3270.c
@@ -276,6 +276,15 @@ __raw3270_start(struct raw3270 *rp, struct raw3270_view *view,
}
int
+raw3270_view_active(struct raw3270_view *view)
+{
+ struct raw3270 *rp = view->dev;
+
+ return rp && rp->view == view &&
+ !test_bit(RAW3270_FLAGS_FROZEN, &rp->flags);
+}
+
+int
raw3270_start(struct raw3270_view *view, struct raw3270_request *rq)
{
unsigned long flags;
@@ -776,22 +785,37 @@ raw3270_setup_device(struct ccw_device *cdev, struct raw3270 *rp, char *ascebc)
}
#ifdef CONFIG_TN3270_CONSOLE
+/* Tentative definition - see below for actual definition. */
+static struct ccw_driver raw3270_ccw_driver;
+
/*
* Setup 3270 device configured as console.
*/
-struct raw3270 __init *raw3270_setup_console(struct ccw_device *cdev)
+struct raw3270 __init *raw3270_setup_console(void)
{
+ struct ccw_device *cdev;
unsigned long flags;
struct raw3270 *rp;
char *ascebc;
int rc;
+ cdev = ccw_device_create_console(&raw3270_ccw_driver);
+ if (IS_ERR(cdev))
+ return ERR_CAST(cdev);
+
rp = kzalloc(sizeof(struct raw3270), GFP_KERNEL | GFP_DMA);
ascebc = kzalloc(256, GFP_KERNEL);
rc = raw3270_setup_device(cdev, rp, ascebc);
if (rc)
return ERR_PTR(rc);
set_bit(RAW3270_FLAGS_CONSOLE, &rp->flags);
+
+ rc = ccw_device_enable_console(cdev);
+ if (rc) {
+ ccw_device_destroy_console(cdev);
+ return ERR_PTR(rc);
+ }
+
spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
do {
__raw3270_reset_device(rp);
diff --git a/drivers/s390/char/raw3270.h b/drivers/s390/char/raw3270.h
index 7b73ff8c1bd7..e1e41c2861fb 100644
--- a/drivers/s390/char/raw3270.h
+++ b/drivers/s390/char/raw3270.h
@@ -173,6 +173,7 @@ int raw3270_start_locked(struct raw3270_view *, struct raw3270_request *);
int raw3270_start_irq(struct raw3270_view *, struct raw3270_request *);
int raw3270_reset(struct raw3270_view *);
struct raw3270_view *raw3270_view(struct raw3270_view *);
+int raw3270_view_active(struct raw3270_view *);
/* Reference count inliner for view structures. */
static inline void
@@ -190,7 +191,7 @@ raw3270_put_view(struct raw3270_view *view)
wake_up(&raw3270_wait_queue);
}
-struct raw3270 *raw3270_setup_console(struct ccw_device *cdev);
+struct raw3270 *raw3270_setup_console(void);
void raw3270_wait_cons_dev(struct raw3270 *);
/* Notifier for device addition/removal */
diff --git a/drivers/s390/char/sclp_early.c b/drivers/s390/char/sclp_early.c
index 82f2c389b4d1..14196ea0fdf3 100644
--- a/drivers/s390/char/sclp_early.c
+++ b/drivers/s390/char/sclp_early.c
@@ -20,7 +20,9 @@ struct read_info_sccb {
struct sccb_header header; /* 0-7 */
u16 rnmax; /* 8-9 */
u8 rnsize; /* 10 */
- u8 _reserved0[24 - 11]; /* 11-15 */
+ u8 _reserved0[16 - 11]; /* 11-15 */
+ u16 ncpurl; /* 16-17 */
+ u8 _reserved7[24 - 18]; /* 18-23 */
u8 loadparm[8]; /* 24-31 */
u8 _reserved1[48 - 32]; /* 32-47 */
u64 facilities; /* 48-55 */
@@ -32,13 +34,16 @@ struct read_info_sccb {
u8 _reserved4[100 - 92]; /* 92-99 */
u32 rnsize2; /* 100-103 */
u64 rnmax2; /* 104-111 */
- u8 _reserved5[4096 - 112]; /* 112-4095 */
+ u8 _reserved5[120 - 112]; /* 112-119 */
+ u16 hcpua; /* 120-121 */
+ u8 _reserved6[4096 - 122]; /* 122-4095 */
} __packed __aligned(PAGE_SIZE);
static char sccb_early[PAGE_SIZE] __aligned(PAGE_SIZE) __initdata;
static unsigned int sclp_con_has_vt220 __initdata;
static unsigned int sclp_con_has_linemode __initdata;
static unsigned long sclp_hsa_size;
+static unsigned int sclp_max_cpu;
static struct sclp_ipl_info sclp_ipl_info;
u64 sclp_facilities;
@@ -102,6 +107,15 @@ static void __init sclp_facilities_detect(struct read_info_sccb *sccb)
sclp_rzm = sccb->rnsize ? sccb->rnsize : sccb->rnsize2;
sclp_rzm <<= 20;
+ if (!sccb->hcpua) {
+ if (MACHINE_IS_VM)
+ sclp_max_cpu = 64;
+ else
+ sclp_max_cpu = sccb->ncpurl;
+ } else {
+ sclp_max_cpu = sccb->hcpua + 1;
+ }
+
/* Save IPL information */
sclp_ipl_info.is_valid = 1;
if (sccb->flags & 0x2)
@@ -129,6 +143,11 @@ unsigned long long sclp_get_rzm(void)
return sclp_rzm;
}
+unsigned int sclp_get_max_cpu(void)
+{
+ return sclp_max_cpu;
+}
+
/*
* This function will be called after sclp_facilities_detect(), which gets
* called from early.c code. The sclp_facilities_detect() function retrieves
@@ -184,9 +203,9 @@ static long __init sclp_hsa_size_init(struct sdias_sccb *sccb)
sccb_init_eq_size(sccb);
if (sclp_cmd_early(SCLP_CMDW_WRITE_EVENT_DATA, sccb))
return -EIO;
- if (sccb->evbuf.blk_cnt != 0)
- return (sccb->evbuf.blk_cnt - 1) * PAGE_SIZE;
- return 0;
+ if (sccb->evbuf.blk_cnt == 0)
+ return 0;
+ return (sccb->evbuf.blk_cnt - 1) * PAGE_SIZE;
}
static long __init sclp_hsa_copy_wait(struct sccb_header *sccb)
@@ -195,6 +214,8 @@ static long __init sclp_hsa_copy_wait(struct sccb_header *sccb)
sccb->length = PAGE_SIZE;
if (sclp_cmd_early(SCLP_CMDW_READ_EVENT_DATA, sccb))
return -EIO;
+ if (((struct sdias_sccb *) sccb)->evbuf.blk_cnt == 0)
+ return 0;
return (((struct sdias_sccb *) sccb)->evbuf.blk_cnt - 1) * PAGE_SIZE;
}
diff --git a/drivers/s390/cio/airq.c b/drivers/s390/cio/airq.c
index f055df0b167f..445564c790f6 100644
--- a/drivers/s390/cio/airq.c
+++ b/drivers/s390/cio/airq.c
@@ -186,55 +186,71 @@ void airq_iv_release(struct airq_iv *iv)
EXPORT_SYMBOL(airq_iv_release);
/**
- * airq_iv_alloc_bit - allocate an irq bit from an interrupt vector
+ * airq_iv_alloc - allocate irq bits from an interrupt vector
* @iv: pointer to an interrupt vector structure
+ * @num: number of consecutive irq bits to allocate
*
- * Returns the bit number of the allocated irq, or -1UL if no bit
- * is available or the AIRQ_IV_ALLOC flag has not been specified
+ * Returns the bit number of the first irq in the allocated block of irqs,
+ * or -1UL if no bit is available or the AIRQ_IV_ALLOC flag has not been
+ * specified
*/
-unsigned long airq_iv_alloc_bit(struct airq_iv *iv)
+unsigned long airq_iv_alloc(struct airq_iv *iv, unsigned long num)
{
- unsigned long bit;
+ unsigned long bit, i;
- if (!iv->avail)
+ if (!iv->avail || num == 0)
return -1UL;
spin_lock(&iv->lock);
bit = find_first_bit_inv(iv->avail, iv->bits);
- if (bit < iv->bits) {
- clear_bit_inv(bit, iv->avail);
- if (bit >= iv->end)
- iv->end = bit + 1;
- } else
+ while (bit + num <= iv->bits) {
+ for (i = 1; i < num; i++)
+ if (!test_bit_inv(bit + i, iv->avail))
+ break;
+ if (i >= num) {
+ /* Found a suitable block of irqs */
+ for (i = 0; i < num; i++)
+ clear_bit_inv(bit + i, iv->avail);
+ if (bit + num >= iv->end)
+ iv->end = bit + num + 1;
+ break;
+ }
+ bit = find_next_bit_inv(iv->avail, iv->bits, bit + i + 1);
+ }
+ if (bit + num > iv->bits)
bit = -1UL;
spin_unlock(&iv->lock);
return bit;
}
-EXPORT_SYMBOL(airq_iv_alloc_bit);
+EXPORT_SYMBOL(airq_iv_alloc);
/**
- * airq_iv_free_bit - free an irq bit of an interrupt vector
+ * airq_iv_free - free irq bits of an interrupt vector
* @iv: pointer to interrupt vector structure
- * @bit: number of the irq bit to free
+ * @bit: number of the first irq bit to free
+ * @num: number of consecutive irq bits to free
*/
-void airq_iv_free_bit(struct airq_iv *iv, unsigned long bit)
+void airq_iv_free(struct airq_iv *iv, unsigned long bit, unsigned long num)
{
- if (!iv->avail)
+ unsigned long i;
+
+ if (!iv->avail || num == 0)
return;
spin_lock(&iv->lock);
- /* Clear (possibly left over) interrupt bit */
- clear_bit_inv(bit, iv->vector);
- /* Make the bit position available again */
- set_bit_inv(bit, iv->avail);
- if (bit == iv->end - 1) {
+ for (i = 0; i < num; i++) {
+ /* Clear (possibly left over) interrupt bit */
+ clear_bit_inv(bit + i, iv->vector);
+ /* Make the bit positions available again */
+ set_bit_inv(bit + i, iv->avail);
+ }
+ if (bit + num >= iv->end) {
/* Find new end of bit-field */
- while (--iv->end > 0)
- if (!test_bit_inv(iv->end - 1, iv->avail))
- break;
+ while (iv->end > 0 && !test_bit_inv(iv->end - 1, iv->avail))
+ iv->end--;
}
spin_unlock(&iv->lock);
}
-EXPORT_SYMBOL(airq_iv_free_bit);
+EXPORT_SYMBOL(airq_iv_free);
/**
* airq_iv_scan - scan interrupt vector for non-zero bits
diff --git a/drivers/s390/cio/ccwgroup.c b/drivers/s390/cio/ccwgroup.c
index fd3367a1dc7a..dfd7bc681c25 100644
--- a/drivers/s390/cio/ccwgroup.c
+++ b/drivers/s390/cio/ccwgroup.c
@@ -168,14 +168,12 @@ static ssize_t ccwgroup_online_show(struct device *dev,
* Provide an 'ungroup' attribute so the user can remove group devices no
* longer needed or accidentially created. Saves memory :)
*/
-static void ccwgroup_ungroup_callback(struct device *dev)
+static void ccwgroup_ungroup(struct ccwgroup_device *gdev)
{
- struct ccwgroup_device *gdev = to_ccwgroupdev(dev);
-
mutex_lock(&gdev->reg_mutex);
if (device_is_registered(&gdev->dev)) {
__ccwgroup_remove_symlinks(gdev);
- device_unregister(dev);
+ device_unregister(&gdev->dev);
__ccwgroup_remove_cdev_refs(gdev);
}
mutex_unlock(&gdev->reg_mutex);
@@ -195,10 +193,9 @@ static ssize_t ccwgroup_ungroup_store(struct device *dev,
rc = -EINVAL;
goto out;
}
- /* Note that we cannot unregister the device from one of its
- * attribute methods, so we have to use this roundabout approach.
- */
- rc = device_schedule_callback(dev, ccwgroup_ungroup_callback);
+
+ if (device_remove_file_self(dev, attr))
+ ccwgroup_ungroup(gdev);
out:
if (rc) {
if (rc != -EAGAIN)
@@ -224,6 +221,14 @@ static const struct attribute_group *ccwgroup_attr_groups[] = {
NULL,
};
+static void ccwgroup_ungroup_workfn(struct work_struct *work)
+{
+ struct ccwgroup_device *gdev =
+ container_of(work, struct ccwgroup_device, ungroup_work);
+
+ ccwgroup_ungroup(gdev);
+}
+
static void ccwgroup_release(struct device *dev)
{
kfree(to_ccwgroupdev(dev));
@@ -323,6 +328,7 @@ int ccwgroup_create_dev(struct device *parent, struct ccwgroup_driver *gdrv,
atomic_set(&gdev->onoff, 0);
mutex_init(&gdev->reg_mutex);
mutex_lock(&gdev->reg_mutex);
+ INIT_WORK(&gdev->ungroup_work, ccwgroup_ungroup_workfn);
gdev->count = num_devices;
gdev->dev.bus = &ccwgroup_bus_type;
gdev->dev.parent = parent;
@@ -404,10 +410,10 @@ EXPORT_SYMBOL(ccwgroup_create_dev);
static int ccwgroup_notifier(struct notifier_block *nb, unsigned long action,
void *data)
{
- struct device *dev = data;
+ struct ccwgroup_device *gdev = to_ccwgroupdev(data);
if (action == BUS_NOTIFY_UNBIND_DRIVER)
- device_schedule_callback(dev, ccwgroup_ungroup_callback);
+ schedule_work(&gdev->ungroup_work);
return NOTIFY_OK;
}
diff --git a/drivers/s390/cio/chsc.c b/drivers/s390/cio/chsc.c
index f6b9188c5af5..9f0ea6cb6922 100644
--- a/drivers/s390/cio/chsc.c
+++ b/drivers/s390/cio/chsc.c
@@ -610,6 +610,7 @@ void chsc_chp_online(struct chp_id chpid)
css_wait_for_slow_path();
for_each_subchannel_staged(__s390_process_res_acc, NULL,
&link);
+ css_schedule_reprobe();
}
}
diff --git a/drivers/s390/cio/chsc_sch.c b/drivers/s390/cio/chsc_sch.c
index 7b29d0be0ca3..1d3661af7bd8 100644
--- a/drivers/s390/cio/chsc_sch.c
+++ b/drivers/s390/cio/chsc_sch.c
@@ -173,8 +173,7 @@ static struct css_driver chsc_subchannel_driver = {
static int __init chsc_init_dbfs(void)
{
- chsc_debug_msg_id = debug_register("chsc_msg", 16, 1,
- 16 * sizeof(long));
+ chsc_debug_msg_id = debug_register("chsc_msg", 8, 1, 4 * sizeof(long));
if (!chsc_debug_msg_id)
goto out;
debug_register_view(chsc_debug_msg_id, &debug_sprintf_view);
diff --git a/drivers/s390/cio/cio.c b/drivers/s390/cio/cio.c
index 88e35d85d205..9e058c4657a3 100644
--- a/drivers/s390/cio/cio.c
+++ b/drivers/s390/cio/cio.c
@@ -18,6 +18,7 @@
#include <linux/device.h>
#include <linux/kernel_stat.h>
#include <linux/interrupt.h>
+#include <linux/irq.h>
#include <asm/cio.h>
#include <asm/delay.h>
#include <asm/irq.h>
@@ -28,7 +29,7 @@
#include <asm/chpid.h>
#include <asm/airq.h>
#include <asm/isc.h>
-#include <asm/cputime.h>
+#include <linux/cputime.h>
#include <asm/fcx.h>
#include <asm/nmi.h>
#include <asm/crw.h>
@@ -54,7 +55,7 @@ debug_info_t *cio_debug_crw_id;
*/
static int __init cio_debug_init(void)
{
- cio_debug_msg_id = debug_register("cio_msg", 16, 1, 16 * sizeof(long));
+ cio_debug_msg_id = debug_register("cio_msg", 16, 1, 11 * sizeof(long));
if (!cio_debug_msg_id)
goto out_unregister;
debug_register_view(cio_debug_msg_id, &debug_sprintf_view);
@@ -64,7 +65,7 @@ static int __init cio_debug_init(void)
goto out_unregister;
debug_register_view(cio_debug_trace_id, &debug_hex_ascii_view);
debug_set_level(cio_debug_trace_id, 2);
- cio_debug_crw_id = debug_register("cio_crw", 16, 1, 16 * sizeof(long));
+ cio_debug_crw_id = debug_register("cio_crw", 8, 1, 8 * sizeof(long));
if (!cio_debug_crw_id)
goto out_unregister;
debug_register_view(cio_debug_crw_id, &debug_sprintf_view);
@@ -342,8 +343,9 @@ static int cio_check_config(struct subchannel *sch, struct schib *schib)
*/
int cio_commit_config(struct subchannel *sch)
{
- struct schib schib;
int ccode, retry, ret = 0;
+ struct schib schib;
+ struct irb irb;
if (stsch_err(sch->schid, &schib) || !css_sch_is_valid(&schib))
return -ENODEV;
@@ -367,7 +369,10 @@ int cio_commit_config(struct subchannel *sch)
ret = -EAGAIN;
break;
case 1: /* status pending */
- return -EBUSY;
+ ret = -EBUSY;
+ if (tsch(sch->schid, &irb))
+ return ret;
+ break;
case 2: /* busy */
udelay(100); /* allow for recovery */
ret = -EBUSY;
@@ -403,7 +408,6 @@ EXPORT_SYMBOL_GPL(cio_update_schib);
*/
int cio_enable_subchannel(struct subchannel *sch, u32 intparm)
{
- int retry;
int ret;
CIO_TRACE_EVENT(2, "ensch");
@@ -418,20 +422,14 @@ int cio_enable_subchannel(struct subchannel *sch, u32 intparm)
sch->config.isc = sch->isc;
sch->config.intparm = intparm;
- for (retry = 0; retry < 3; retry++) {
+ ret = cio_commit_config(sch);
+ if (ret == -EIO) {
+ /*
+ * Got a program check in msch. Try without
+ * the concurrent sense bit the next time.
+ */
+ sch->config.csense = 0;
ret = cio_commit_config(sch);
- if (ret == -EIO) {
- /*
- * Got a program check in msch. Try without
- * the concurrent sense bit the next time.
- */
- sch->config.csense = 0;
- } else if (ret == -EBUSY) {
- struct irb irb;
- if (tsch(sch->schid, &irb) != 0)
- break;
- } else
- break;
}
CIO_HEX_EVENT(2, &ret, sizeof(ret));
return ret;
@@ -444,7 +442,6 @@ EXPORT_SYMBOL_GPL(cio_enable_subchannel);
*/
int cio_disable_subchannel(struct subchannel *sch)
{
- int retry;
int ret;
CIO_TRACE_EVENT(2, "dissch");
@@ -456,16 +453,8 @@ int cio_disable_subchannel(struct subchannel *sch)
return -ENODEV;
sch->config.ena = 0;
+ ret = cio_commit_config(sch);
- for (retry = 0; retry < 3; retry++) {
- ret = cio_commit_config(sch);
- if (ret == -EBUSY) {
- struct irb irb;
- if (tsch(sch->schid, &irb) != 0)
- break;
- } else
- break;
- }
CIO_HEX_EVENT(2, &ret, sizeof(ret));
return ret;
}
@@ -596,8 +585,6 @@ static irqreturn_t do_cio_interrupt(int irq, void *dummy)
return IRQ_HANDLED;
}
-static struct irq_desc *irq_desc_io;
-
static struct irqaction io_interrupt = {
.name = "IO",
.handler = do_cio_interrupt,
@@ -608,7 +595,6 @@ void __init init_cio_interrupts(void)
irq_set_chip_and_handler(IO_INTERRUPT,
&dummy_irq_chip, handle_percpu_irq);
setup_irq(IO_INTERRUPT, &io_interrupt);
- irq_desc_io = irq_to_desc(IO_INTERRUPT);
}
#ifdef CONFIG_CCW_CONSOLE
@@ -635,7 +621,7 @@ void cio_tsch(struct subchannel *sch)
local_bh_disable();
irq_enter();
}
- kstat_incr_irqs_this_cpu(IO_INTERRUPT, irq_desc_io);
+ kstat_incr_irq_this_cpu(IO_INTERRUPT);
if (sch->driver && sch->driver->irq)
sch->driver->irq(sch);
else
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index e9d783563cbb..d8d9b5b5cc56 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -1571,12 +1571,27 @@ out:
return rc;
}
+static void ccw_device_set_int_class(struct ccw_device *cdev)
+{
+ struct ccw_driver *cdrv = cdev->drv;
+
+ /* Note: we interpret class 0 in this context as an uninitialized
+ * field since it translates to a non-I/O interrupt class. */
+ if (cdrv->int_class != 0)
+ cdev->private->int_class = cdrv->int_class;
+ else
+ cdev->private->int_class = IRQIO_CIO;
+}
+
#ifdef CONFIG_CCW_CONSOLE
-static int ccw_device_console_enable(struct ccw_device *cdev,
- struct subchannel *sch)
+int __init ccw_device_enable_console(struct ccw_device *cdev)
{
+ struct subchannel *sch = to_subchannel(cdev->dev.parent);
int rc;
+ if (!cdev->drv || !cdev->handler)
+ return -EINVAL;
+
io_subchannel_init_fields(sch);
rc = cio_commit_config(sch);
if (rc)
@@ -1609,12 +1624,11 @@ out_unlock:
return rc;
}
-struct ccw_device *ccw_device_probe_console(void)
+struct ccw_device * __init ccw_device_create_console(struct ccw_driver *drv)
{
struct io_subchannel_private *io_priv;
struct ccw_device *cdev;
struct subchannel *sch;
- int ret;
sch = cio_probe_console();
if (IS_ERR(sch))
@@ -1631,18 +1645,23 @@ struct ccw_device *ccw_device_probe_console(void)
kfree(io_priv);
return cdev;
}
+ cdev->drv = drv;
set_io_private(sch, io_priv);
- ret = ccw_device_console_enable(cdev, sch);
- if (ret) {
- set_io_private(sch, NULL);
- put_device(&sch->dev);
- put_device(&cdev->dev);
- kfree(io_priv);
- return ERR_PTR(ret);
- }
+ ccw_device_set_int_class(cdev);
return cdev;
}
+void __init ccw_device_destroy_console(struct ccw_device *cdev)
+{
+ struct subchannel *sch = to_subchannel(cdev->dev.parent);
+ struct io_subchannel_private *io_priv = to_io_private(sch);
+
+ set_io_private(sch, NULL);
+ put_device(&sch->dev);
+ put_device(&cdev->dev);
+ kfree(io_priv);
+}
+
/**
* ccw_device_wait_idle() - busy wait for device to become idle
* @cdev: ccw device
@@ -1726,15 +1745,8 @@ ccw_device_probe (struct device *dev)
int ret;
cdev->drv = cdrv; /* to let the driver call _set_online */
- /* Note: we interpret class 0 in this context as an uninitialized
- * field since it translates to a non-I/O interrupt class. */
- if (cdrv->int_class != 0)
- cdev->private->int_class = cdrv->int_class;
- else
- cdev->private->int_class = IRQIO_CIO;
-
+ ccw_device_set_int_class(cdev);
ret = cdrv->probe ? cdrv->probe(cdev) : -ENODEV;
-
if (ret) {
cdev->drv = NULL;
cdev->private->int_class = IRQIO_CIO;
diff --git a/drivers/s390/cio/qdio.h b/drivers/s390/cio/qdio.h
index 8acaae18bd11..a563e4c00590 100644
--- a/drivers/s390/cio/qdio.h
+++ b/drivers/s390/cio/qdio.h
@@ -359,14 +359,12 @@ static inline int multicast_outbound(struct qdio_q *q)
#define need_siga_sync_out_after_pci(q) \
(unlikely(q->irq_ptr->siga_flag.sync_out_after_pci))
-#define for_each_input_queue(irq_ptr, q, i) \
- for (i = 0, q = irq_ptr->input_qs[0]; \
- i < irq_ptr->nr_input_qs; \
- q = irq_ptr->input_qs[++i])
-#define for_each_output_queue(irq_ptr, q, i) \
- for (i = 0, q = irq_ptr->output_qs[0]; \
- i < irq_ptr->nr_output_qs; \
- q = irq_ptr->output_qs[++i])
+#define for_each_input_queue(irq_ptr, q, i) \
+ for (i = 0; i < irq_ptr->nr_input_qs && \
+ ({ q = irq_ptr->input_qs[i]; 1; }); i++)
+#define for_each_output_queue(irq_ptr, q, i) \
+ for (i = 0; i < irq_ptr->nr_output_qs && \
+ ({ q = irq_ptr->output_qs[i]; 1; }); i++)
#define prev_buf(bufnr) \
((bufnr + QDIO_MAX_BUFFERS_MASK) & QDIO_MAX_BUFFERS_MASK)
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index c883a085c059..77466c4faabb 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -996,7 +996,7 @@ static void qdio_int_handler_pci(struct qdio_irq *irq_ptr)
}
}
- if (!pci_out_supported(q))
+ if (!(irq_ptr->qib.ac & QIB_AC_OUTBOUND_PCI_SUPPORTED))
return;
for_each_output_queue(irq_ptr, q, i) {
diff --git a/drivers/s390/crypto/zcrypt_msgtype6.c b/drivers/s390/crypto/zcrypt_msgtype6.c
index dc542e0a3055..0bc91e46395a 100644
--- a/drivers/s390/crypto/zcrypt_msgtype6.c
+++ b/drivers/s390/crypto/zcrypt_msgtype6.c
@@ -311,7 +311,7 @@ static int XCRB_msg_to_type6CPRB_msgX(struct zcrypt_device *zdev,
} __packed * msg = ap_msg->message;
int rcblen = CEIL4(xcRB->request_control_blk_length);
- int replylen;
+ int replylen, req_sumlen, resp_sumlen;
char *req_data = ap_msg->message + sizeof(struct type6_hdr) + rcblen;
char *function_code;
@@ -321,12 +321,34 @@ static int XCRB_msg_to_type6CPRB_msgX(struct zcrypt_device *zdev,
xcRB->request_data_length;
if (ap_msg->length > MSGTYPE06_MAX_MSG_SIZE)
return -EINVAL;
+
+ /* Overflow check
+ sum must be greater (or equal) than the largest operand */
+ req_sumlen = CEIL4(xcRB->request_control_blk_length) +
+ xcRB->request_data_length;
+ if ((CEIL4(xcRB->request_control_blk_length) <=
+ xcRB->request_data_length) ?
+ (req_sumlen < xcRB->request_data_length) :
+ (req_sumlen < CEIL4(xcRB->request_control_blk_length))) {
+ return -EINVAL;
+ }
+
replylen = sizeof(struct type86_fmt2_msg) +
CEIL4(xcRB->reply_control_blk_length) +
xcRB->reply_data_length;
if (replylen > MSGTYPE06_MAX_MSG_SIZE)
return -EINVAL;
+ /* Overflow check
+ sum must be greater (or equal) than the largest operand */
+ resp_sumlen = CEIL4(xcRB->reply_control_blk_length) +
+ xcRB->reply_data_length;
+ if ((CEIL4(xcRB->reply_control_blk_length) <= xcRB->reply_data_length) ?
+ (resp_sumlen < xcRB->reply_data_length) :
+ (resp_sumlen < CEIL4(xcRB->reply_control_blk_length))) {
+ return -EINVAL;
+ }
+
/* prepare type6 header */
msg->hdr = static_type6_hdrX;
memcpy(msg->hdr.agent_id , &(xcRB->agent_ID), sizeof(xcRB->agent_ID));
diff --git a/drivers/s390/kvm/virtio_ccw.c b/drivers/s390/kvm/virtio_ccw.c
index 0fc584832001..1e1fc671f89a 100644
--- a/drivers/s390/kvm/virtio_ccw.c
+++ b/drivers/s390/kvm/virtio_ccw.c
@@ -1,7 +1,7 @@
/*
* ccw based virtio transport
*
- * Copyright IBM Corp. 2012
+ * Copyright IBM Corp. 2012, 2014
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License (version 2 only)
@@ -32,6 +32,8 @@
#include <asm/cio.h>
#include <asm/ccwdev.h>
#include <asm/virtio-ccw.h>
+#include <asm/isc.h>
+#include <asm/airq.h>
/*
* virtio related functions
@@ -58,6 +60,9 @@ struct virtio_ccw_device {
unsigned long indicators;
unsigned long indicators2;
struct vq_config_block *config_block;
+ bool is_thinint;
+ bool going_away;
+ void *airq_info;
};
struct vq_info_block {
@@ -72,15 +77,38 @@ struct virtio_feature_desc {
__u8 index;
} __packed;
+struct virtio_thinint_area {
+ unsigned long summary_indicator;
+ unsigned long indicator;
+ u64 bit_nr;
+ u8 isc;
+} __packed;
+
struct virtio_ccw_vq_info {
struct virtqueue *vq;
int num;
void *queue;
struct vq_info_block *info_block;
+ int bit_nr;
struct list_head node;
long cookie;
};
+#define VIRTIO_AIRQ_ISC IO_SCH_ISC /* inherit from subchannel */
+
+#define VIRTIO_IV_BITS (L1_CACHE_BYTES * 8)
+#define MAX_AIRQ_AREAS 20
+
+static int virtio_ccw_use_airq = 1;
+
+struct airq_info {
+ rwlock_t lock;
+ u8 summary_indicator;
+ struct airq_struct airq;
+ struct airq_iv *aiv;
+};
+static struct airq_info *airq_areas[MAX_AIRQ_AREAS];
+
#define CCW_CMD_SET_VQ 0x13
#define CCW_CMD_VDEV_RESET 0x33
#define CCW_CMD_SET_IND 0x43
@@ -91,6 +119,7 @@ struct virtio_ccw_vq_info {
#define CCW_CMD_WRITE_CONF 0x21
#define CCW_CMD_WRITE_STATUS 0x31
#define CCW_CMD_READ_VQ_CONF 0x32
+#define CCW_CMD_SET_IND_ADAPTER 0x73
#define VIRTIO_CCW_DOING_SET_VQ 0x00010000
#define VIRTIO_CCW_DOING_RESET 0x00040000
@@ -102,6 +131,7 @@ struct virtio_ccw_vq_info {
#define VIRTIO_CCW_DOING_SET_IND 0x01000000
#define VIRTIO_CCW_DOING_READ_VQ_CONF 0x02000000
#define VIRTIO_CCW_DOING_SET_CONF_IND 0x04000000
+#define VIRTIO_CCW_DOING_SET_IND_ADAPTER 0x08000000
#define VIRTIO_CCW_INTPARM_MASK 0xffff0000
static struct virtio_ccw_device *to_vc_device(struct virtio_device *vdev)
@@ -109,6 +139,125 @@ static struct virtio_ccw_device *to_vc_device(struct virtio_device *vdev)
return container_of(vdev, struct virtio_ccw_device, vdev);
}
+static void drop_airq_indicator(struct virtqueue *vq, struct airq_info *info)
+{
+ unsigned long i, flags;
+
+ write_lock_irqsave(&info->lock, flags);
+ for (i = 0; i < airq_iv_end(info->aiv); i++) {
+ if (vq == (void *)airq_iv_get_ptr(info->aiv, i)) {
+ airq_iv_free_bit(info->aiv, i);
+ airq_iv_set_ptr(info->aiv, i, 0);
+ break;
+ }
+ }
+ write_unlock_irqrestore(&info->lock, flags);
+}
+
+static void virtio_airq_handler(struct airq_struct *airq)
+{
+ struct airq_info *info = container_of(airq, struct airq_info, airq);
+ unsigned long ai;
+
+ inc_irq_stat(IRQIO_VAI);
+ read_lock(&info->lock);
+ /* Walk through indicators field, summary indicator active. */
+ for (ai = 0;;) {
+ ai = airq_iv_scan(info->aiv, ai, airq_iv_end(info->aiv));
+ if (ai == -1UL)
+ break;
+ vring_interrupt(0, (void *)airq_iv_get_ptr(info->aiv, ai));
+ }
+ info->summary_indicator = 0;
+ smp_wmb();
+ /* Walk through indicators field, summary indicator not active. */
+ for (ai = 0;;) {
+ ai = airq_iv_scan(info->aiv, ai, airq_iv_end(info->aiv));
+ if (ai == -1UL)
+ break;
+ vring_interrupt(0, (void *)airq_iv_get_ptr(info->aiv, ai));
+ }
+ read_unlock(&info->lock);
+}
+
+static struct airq_info *new_airq_info(void)
+{
+ struct airq_info *info;
+ int rc;
+
+ info = kzalloc(sizeof(*info), GFP_KERNEL);
+ if (!info)
+ return NULL;
+ rwlock_init(&info->lock);
+ info->aiv = airq_iv_create(VIRTIO_IV_BITS, AIRQ_IV_ALLOC | AIRQ_IV_PTR);
+ if (!info->aiv) {
+ kfree(info);
+ return NULL;
+ }
+ info->airq.handler = virtio_airq_handler;
+ info->airq.lsi_ptr = &info->summary_indicator;
+ info->airq.lsi_mask = 0xff;
+ info->airq.isc = VIRTIO_AIRQ_ISC;
+ rc = register_adapter_interrupt(&info->airq);
+ if (rc) {
+ airq_iv_release(info->aiv);
+ kfree(info);
+ return NULL;
+ }
+ return info;
+}
+
+static void destroy_airq_info(struct airq_info *info)
+{
+ if (!info)
+ return;
+
+ unregister_adapter_interrupt(&info->airq);
+ airq_iv_release(info->aiv);
+ kfree(info);
+}
+
+static unsigned long get_airq_indicator(struct virtqueue *vqs[], int nvqs,
+ u64 *first, void **airq_info)
+{
+ int i, j;
+ struct airq_info *info;
+ unsigned long indicator_addr = 0;
+ unsigned long bit, flags;
+
+ for (i = 0; i < MAX_AIRQ_AREAS && !indicator_addr; i++) {
+ if (!airq_areas[i])
+ airq_areas[i] = new_airq_info();
+ info = airq_areas[i];
+ if (!info)
+ return 0;
+ write_lock_irqsave(&info->lock, flags);
+ bit = airq_iv_alloc(info->aiv, nvqs);
+ if (bit == -1UL) {
+ /* Not enough vacancies. */
+ write_unlock_irqrestore(&info->lock, flags);
+ continue;
+ }
+ *first = bit;
+ *airq_info = info;
+ indicator_addr = (unsigned long)info->aiv->vector;
+ for (j = 0; j < nvqs; j++) {
+ airq_iv_set_ptr(info->aiv, bit + j,
+ (unsigned long)vqs[j]);
+ }
+ write_unlock_irqrestore(&info->lock, flags);
+ }
+ return indicator_addr;
+}
+
+static void virtio_ccw_drop_indicators(struct virtio_ccw_device *vcdev)
+{
+ struct virtio_ccw_vq_info *info;
+
+ list_for_each_entry(info, &vcdev->virtqueues, node)
+ drop_airq_indicator(info->vq, vcdev->airq_info);
+}
+
static int doing_io(struct virtio_ccw_device *vcdev, __u32 flag)
{
unsigned long flags;
@@ -145,6 +294,51 @@ static int ccw_io_helper(struct virtio_ccw_device *vcdev,
return ret ? ret : vcdev->err;
}
+static void virtio_ccw_drop_indicator(struct virtio_ccw_device *vcdev,
+ struct ccw1 *ccw)
+{
+ int ret;
+ unsigned long *indicatorp = NULL;
+ struct virtio_thinint_area *thinint_area = NULL;
+ struct airq_info *airq_info = vcdev->airq_info;
+
+ if (vcdev->is_thinint) {
+ thinint_area = kzalloc(sizeof(*thinint_area),
+ GFP_DMA | GFP_KERNEL);
+ if (!thinint_area)
+ return;
+ thinint_area->summary_indicator =
+ (unsigned long) &airq_info->summary_indicator;
+ thinint_area->isc = VIRTIO_AIRQ_ISC;
+ ccw->cmd_code = CCW_CMD_SET_IND_ADAPTER;
+ ccw->count = sizeof(*thinint_area);
+ ccw->cda = (__u32)(unsigned long) thinint_area;
+ } else {
+ indicatorp = kmalloc(sizeof(&vcdev->indicators),
+ GFP_DMA | GFP_KERNEL);
+ if (!indicatorp)
+ return;
+ *indicatorp = 0;
+ ccw->cmd_code = CCW_CMD_SET_IND;
+ ccw->count = sizeof(vcdev->indicators);
+ ccw->cda = (__u32)(unsigned long) indicatorp;
+ }
+ /* Deregister indicators from host. */
+ vcdev->indicators = 0;
+ ccw->flags = 0;
+ ret = ccw_io_helper(vcdev, ccw,
+ vcdev->is_thinint ?
+ VIRTIO_CCW_DOING_SET_IND_ADAPTER :
+ VIRTIO_CCW_DOING_SET_IND);
+ if (ret && (ret != -ENODEV))
+ dev_info(&vcdev->cdev->dev,
+ "Failed to deregister indicators (%d)\n", ret);
+ else if (vcdev->is_thinint)
+ virtio_ccw_drop_indicators(vcdev);
+ kfree(indicatorp);
+ kfree(thinint_area);
+}
+
static inline long do_kvm_notify(struct subchannel_id schid,
unsigned long queue_index,
long cookie)
@@ -232,11 +426,13 @@ static void virtio_ccw_del_vqs(struct virtio_device *vdev)
{
struct virtqueue *vq, *n;
struct ccw1 *ccw;
+ struct virtio_ccw_device *vcdev = to_vc_device(vdev);
ccw = kzalloc(sizeof(*ccw), GFP_DMA | GFP_KERNEL);
if (!ccw)
return;
+ virtio_ccw_drop_indicator(vcdev, ccw);
list_for_each_entry_safe(vq, n, &vdev->vqs, list)
virtio_ccw_del_vq(vq, ccw);
@@ -326,6 +522,54 @@ out_err:
return ERR_PTR(err);
}
+static int virtio_ccw_register_adapter_ind(struct virtio_ccw_device *vcdev,
+ struct virtqueue *vqs[], int nvqs,
+ struct ccw1 *ccw)
+{
+ int ret;
+ struct virtio_thinint_area *thinint_area = NULL;
+ struct airq_info *info;
+
+ thinint_area = kzalloc(sizeof(*thinint_area), GFP_DMA | GFP_KERNEL);
+ if (!thinint_area) {
+ ret = -ENOMEM;
+ goto out;
+ }
+ /* Try to get an indicator. */
+ thinint_area->indicator = get_airq_indicator(vqs, nvqs,
+ &thinint_area->bit_nr,
+ &vcdev->airq_info);
+ if (!thinint_area->indicator) {
+ ret = -ENOSPC;
+ goto out;
+ }
+ info = vcdev->airq_info;
+ thinint_area->summary_indicator =
+ (unsigned long) &info->summary_indicator;
+ thinint_area->isc = VIRTIO_AIRQ_ISC;
+ ccw->cmd_code = CCW_CMD_SET_IND_ADAPTER;
+ ccw->flags = CCW_FLAG_SLI;
+ ccw->count = sizeof(*thinint_area);
+ ccw->cda = (__u32)(unsigned long)thinint_area;
+ ret = ccw_io_helper(vcdev, ccw, VIRTIO_CCW_DOING_SET_IND_ADAPTER);
+ if (ret) {
+ if (ret == -EOPNOTSUPP) {
+ /*
+ * The host does not support adapter interrupts
+ * for virtio-ccw, stop trying.
+ */
+ virtio_ccw_use_airq = 0;
+ pr_info("Adapter interrupts unsupported on host\n");
+ } else
+ dev_warn(&vcdev->cdev->dev,
+ "enabling adapter interrupts = %d\n", ret);
+ virtio_ccw_drop_indicators(vcdev);
+ }
+out:
+ kfree(thinint_area);
+ return ret;
+}
+
static int virtio_ccw_find_vqs(struct virtio_device *vdev, unsigned nvqs,
struct virtqueue *vqs[],
vq_callback_t *callbacks[],
@@ -355,15 +599,23 @@ static int virtio_ccw_find_vqs(struct virtio_device *vdev, unsigned nvqs,
if (!indicatorp)
goto out;
*indicatorp = (unsigned long) &vcdev->indicators;
- /* Register queue indicators with host. */
- vcdev->indicators = 0;
- ccw->cmd_code = CCW_CMD_SET_IND;
- ccw->flags = 0;
- ccw->count = sizeof(vcdev->indicators);
- ccw->cda = (__u32)(unsigned long) indicatorp;
- ret = ccw_io_helper(vcdev, ccw, VIRTIO_CCW_DOING_SET_IND);
- if (ret)
- goto out;
+ if (vcdev->is_thinint) {
+ ret = virtio_ccw_register_adapter_ind(vcdev, vqs, nvqs, ccw);
+ if (ret)
+ /* no error, just fall back to legacy interrupts */
+ vcdev->is_thinint = 0;
+ }
+ if (!vcdev->is_thinint) {
+ /* Register queue indicators with host. */
+ vcdev->indicators = 0;
+ ccw->cmd_code = CCW_CMD_SET_IND;
+ ccw->flags = 0;
+ ccw->count = sizeof(vcdev->indicators);
+ ccw->cda = (__u32)(unsigned long) indicatorp;
+ ret = ccw_io_helper(vcdev, ccw, VIRTIO_CCW_DOING_SET_IND);
+ if (ret)
+ goto out;
+ }
/* Register indicators2 with host for config changes */
*indicatorp = (unsigned long) &vcdev->indicators2;
vcdev->indicators2 = 0;
@@ -636,6 +888,8 @@ static void virtio_ccw_int_handler(struct ccw_device *cdev,
struct virtqueue *vq;
struct virtio_driver *drv;
+ if (!vcdev)
+ return;
/* Check if it's a notification from the host. */
if ((intparm == 0) &&
(scsw_stctl(&irb->scsw) ==
@@ -663,6 +917,7 @@ static void virtio_ccw_int_handler(struct ccw_device *cdev,
case VIRTIO_CCW_DOING_SET_CONF_IND:
case VIRTIO_CCW_DOING_RESET:
case VIRTIO_CCW_DOING_READ_VQ_CONF:
+ case VIRTIO_CCW_DOING_SET_IND_ADAPTER:
vcdev->curr_io &= ~activity;
wake_up(&vcdev->wait_q);
break;
@@ -734,23 +989,46 @@ static int virtio_ccw_probe(struct ccw_device *cdev)
return 0;
}
+static struct virtio_ccw_device *virtio_grab_drvdata(struct ccw_device *cdev)
+{
+ unsigned long flags;
+ struct virtio_ccw_device *vcdev;
+
+ spin_lock_irqsave(get_ccwdev_lock(cdev), flags);
+ vcdev = dev_get_drvdata(&cdev->dev);
+ if (!vcdev || vcdev->going_away) {
+ spin_unlock_irqrestore(get_ccwdev_lock(cdev), flags);
+ return NULL;
+ }
+ vcdev->going_away = true;
+ spin_unlock_irqrestore(get_ccwdev_lock(cdev), flags);
+ return vcdev;
+}
+
static void virtio_ccw_remove(struct ccw_device *cdev)
{
- struct virtio_ccw_device *vcdev = dev_get_drvdata(&cdev->dev);
+ unsigned long flags;
+ struct virtio_ccw_device *vcdev = virtio_grab_drvdata(cdev);
- if (cdev->online) {
+ if (vcdev && cdev->online)
unregister_virtio_device(&vcdev->vdev);
- dev_set_drvdata(&cdev->dev, NULL);
- }
+ spin_lock_irqsave(get_ccwdev_lock(cdev), flags);
+ dev_set_drvdata(&cdev->dev, NULL);
+ spin_unlock_irqrestore(get_ccwdev_lock(cdev), flags);
cdev->handler = NULL;
}
static int virtio_ccw_offline(struct ccw_device *cdev)
{
- struct virtio_ccw_device *vcdev = dev_get_drvdata(&cdev->dev);
+ unsigned long flags;
+ struct virtio_ccw_device *vcdev = virtio_grab_drvdata(cdev);
- unregister_virtio_device(&vcdev->vdev);
- dev_set_drvdata(&cdev->dev, NULL);
+ if (vcdev) {
+ unregister_virtio_device(&vcdev->vdev);
+ spin_lock_irqsave(get_ccwdev_lock(cdev), flags);
+ dev_set_drvdata(&cdev->dev, NULL);
+ spin_unlock_irqrestore(get_ccwdev_lock(cdev), flags);
+ }
return 0;
}
@@ -759,6 +1037,7 @@ static int virtio_ccw_online(struct ccw_device *cdev)
{
int ret;
struct virtio_ccw_device *vcdev;
+ unsigned long flags;
vcdev = kzalloc(sizeof(*vcdev), GFP_KERNEL);
if (!vcdev) {
@@ -778,6 +1057,8 @@ static int virtio_ccw_online(struct ccw_device *cdev)
goto out_free;
}
+ vcdev->is_thinint = virtio_ccw_use_airq; /* at least try */
+
vcdev->vdev.dev.parent = &cdev->dev;
vcdev->vdev.dev.release = virtio_ccw_release_dev;
vcdev->vdev.config = &virtio_ccw_config_ops;
@@ -786,7 +1067,9 @@ static int virtio_ccw_online(struct ccw_device *cdev)
INIT_LIST_HEAD(&vcdev->virtqueues);
spin_lock_init(&vcdev->lock);
+ spin_lock_irqsave(get_ccwdev_lock(cdev), flags);
dev_set_drvdata(&cdev->dev, vcdev);
+ spin_unlock_irqrestore(get_ccwdev_lock(cdev), flags);
vcdev->vdev.id.vendor = cdev->id.cu_type;
vcdev->vdev.id.device = cdev->id.cu_model;
ret = register_virtio_device(&vcdev->vdev);
@@ -797,7 +1080,9 @@ static int virtio_ccw_online(struct ccw_device *cdev)
}
return 0;
out_put:
+ spin_lock_irqsave(get_ccwdev_lock(cdev), flags);
dev_set_drvdata(&cdev->dev, NULL);
+ spin_unlock_irqrestore(get_ccwdev_lock(cdev), flags);
put_device(&vcdev->vdev.dev);
return ret;
out_free:
@@ -935,6 +1220,10 @@ module_init(virtio_ccw_init);
static void __exit virtio_ccw_exit(void)
{
+ int i;
+
ccw_driver_unregister(&virtio_ccw_driver);
+ for (i = 0; i < MAX_AIRQ_AREAS; i++)
+ destroy_airq_info(airq_areas[i]);
}
module_exit(virtio_ccw_exit);
diff --git a/drivers/s390/net/qeth_core.h b/drivers/s390/net/qeth_core.h
index a0de045eb227..5333b2c018e7 100644
--- a/drivers/s390/net/qeth_core.h
+++ b/drivers/s390/net/qeth_core.h
@@ -854,8 +854,11 @@ static inline int qeth_get_micros(void)
static inline int qeth_get_ip_version(struct sk_buff *skb)
{
- struct ethhdr *ehdr = (struct ethhdr *)skb->data;
- switch (ehdr->h_proto) {
+ __be16 *p = &((struct ethhdr *)skb->data)->h_proto;
+
+ if (*p == ETH_P_8021Q)
+ p += 2;
+ switch (*p) {
case ETH_P_IPV6:
return 6;
case ETH_P_IP:
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index c3a83df07894..22470a3b182f 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -33,8 +33,8 @@ struct qeth_dbf_info qeth_dbf[QETH_DBF_INFOS] = {
/* N P A M L V H */
[QETH_DBF_SETUP] = {"qeth_setup",
8, 1, 8, 5, &debug_hex_ascii_view, NULL},
- [QETH_DBF_MSG] = {"qeth_msg",
- 8, 1, 128, 3, &debug_sprintf_view, NULL},
+ [QETH_DBF_MSG] = {"qeth_msg", 8, 1, 11 * sizeof(long), 3,
+ &debug_sprintf_view, NULL},
[QETH_DBF_CTRL] = {"qeth_control",
8, 1, QETH_DBF_CTRL_LEN, 5, &debug_hex_ascii_view, NULL},
};
@@ -1660,7 +1660,6 @@ int qeth_qdio_clear_card(struct qeth_card *card, int use_halt)
QDIO_FLAG_CLEANUP_USING_CLEAR);
if (rc)
QETH_CARD_TEXT_(card, 3, "1err%d", rc);
- qdio_free(CARD_DDEV(card));
atomic_set(&card->qdio.state, QETH_QDIO_ALLOCATED);
break;
case QETH_QDIO_CLEANING:
@@ -2605,6 +2604,7 @@ static int qeth_mpc_initialize(struct qeth_card *card)
return 0;
out_qdio:
qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
+ qdio_free(CARD_DDEV(card));
return rc;
}
@@ -4610,8 +4610,8 @@ out:
}
EXPORT_SYMBOL_GPL(qeth_query_oat_command);
-int qeth_query_card_info_cb(struct qeth_card *card,
- struct qeth_reply *reply, unsigned long data)
+static int qeth_query_card_info_cb(struct qeth_card *card,
+ struct qeth_reply *reply, unsigned long data)
{
struct qeth_ipa_cmd *cmd;
struct qeth_query_card_info *card_info;
@@ -4906,9 +4906,11 @@ retry:
if (retries < 3)
QETH_DBF_MESSAGE(2, "%s Retrying to do IDX activates.\n",
dev_name(&card->gdev->dev));
+ rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
ccw_device_set_offline(CARD_DDEV(card));
ccw_device_set_offline(CARD_WDEV(card));
ccw_device_set_offline(CARD_RDEV(card));
+ qdio_free(CARD_DDEV(card));
rc = ccw_device_set_online(CARD_RDEV(card));
if (rc)
goto retriable;
@@ -4918,7 +4920,6 @@ retry:
rc = ccw_device_set_online(CARD_DDEV(card));
if (rc)
goto retriable;
- rc = qeth_qdio_clear_card(card, card->info.type != QETH_CARD_TYPE_IQD);
retriable:
if (rc == -ERESTARTSYS) {
QETH_DBF_TEXT(SETUP, 2, "break1");
diff --git a/drivers/s390/net/qeth_l2_main.c b/drivers/s390/net/qeth_l2_main.c
index 0710550093ce..8dea3f12ccc1 100644
--- a/drivers/s390/net/qeth_l2_main.c
+++ b/drivers/s390/net/qeth_l2_main.c
@@ -241,7 +241,7 @@ static inline int qeth_l2_get_cast_type(struct qeth_card *card,
}
static void qeth_l2_fill_header(struct qeth_card *card, struct qeth_hdr *hdr,
- struct sk_buff *skb, int ipv, int cast_type)
+ struct sk_buff *skb, int cast_type)
{
struct vlan_ethhdr *veth = (struct vlan_ethhdr *)skb_mac_header(skb);
@@ -762,7 +762,7 @@ static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
goto tx_drop;
elements_needed++;
skb_reset_mac_header(new_skb);
- qeth_l2_fill_header(card, hdr, new_skb, ipv, cast_type);
+ qeth_l2_fill_header(card, hdr, new_skb, cast_type);
hdr->hdr.l2.pkt_length = new_skb->len;
memcpy(((char *)hdr) + sizeof(struct qeth_hdr),
skb_mac_header(new_skb), ETH_HLEN);
@@ -775,7 +775,7 @@ static int qeth_l2_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
hdr = (struct qeth_hdr *)skb_push(new_skb,
sizeof(struct qeth_hdr));
skb_set_mac_header(new_skb, sizeof(struct qeth_hdr));
- qeth_l2_fill_header(card, hdr, new_skb, ipv, cast_type);
+ qeth_l2_fill_header(card, hdr, new_skb, cast_type);
}
}
@@ -1091,6 +1091,7 @@ out_remove:
ccw_device_set_offline(CARD_DDEV(card));
ccw_device_set_offline(CARD_WDEV(card));
ccw_device_set_offline(CARD_RDEV(card));
+ qdio_free(CARD_DDEV(card));
if (recover_flag == CARD_STATE_RECOVER)
card->state = CARD_STATE_RECOVER;
else
@@ -1132,6 +1133,7 @@ static int __qeth_l2_set_offline(struct ccwgroup_device *cgdev,
rc = (rc2) ? rc2 : rc3;
if (rc)
QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
+ qdio_free(CARD_DDEV(card));
if (recover_flag == CARD_STATE_UP)
card->state = CARD_STATE_RECOVER;
/* let user_space know that device is offline */
@@ -1194,6 +1196,7 @@ static void qeth_l2_shutdown(struct ccwgroup_device *gdev)
qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
qeth_qdio_clear_card(card, 0);
qeth_clear_qdio_buffers(card);
+ qdio_free(CARD_DDEV(card));
}
static int qeth_l2_pm_suspend(struct ccwgroup_device *gdev)
diff --git a/drivers/s390/net/qeth_l3_main.c b/drivers/s390/net/qeth_l3_main.c
index 0f430424c3b8..3524d34ff694 100644
--- a/drivers/s390/net/qeth_l3_main.c
+++ b/drivers/s390/net/qeth_l3_main.c
@@ -3447,6 +3447,7 @@ out_remove:
ccw_device_set_offline(CARD_DDEV(card));
ccw_device_set_offline(CARD_WDEV(card));
ccw_device_set_offline(CARD_RDEV(card));
+ qdio_free(CARD_DDEV(card));
if (recover_flag == CARD_STATE_RECOVER)
card->state = CARD_STATE_RECOVER;
else
@@ -3493,6 +3494,7 @@ static int __qeth_l3_set_offline(struct ccwgroup_device *cgdev,
rc = (rc2) ? rc2 : rc3;
if (rc)
QETH_DBF_TEXT_(SETUP, 2, "1err%d", rc);
+ qdio_free(CARD_DDEV(card));
if (recover_flag == CARD_STATE_UP)
card->state = CARD_STATE_RECOVER;
/* let user_space know that device is offline */
@@ -3545,6 +3547,7 @@ static void qeth_l3_shutdown(struct ccwgroup_device *gdev)
qeth_hw_trap(card, QETH_DIAGS_TRAP_DISARM);
qeth_qdio_clear_card(card, 0);
qeth_clear_qdio_buffers(card);
+ qdio_free(CARD_DDEV(card));
}
static int qeth_l3_pm_suspend(struct ccwgroup_device *gdev)
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2024-07-01 09:34:18 +0200