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path: root/drivers/infiniband/hw/ipath/ipath_driver.c
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Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_driver.c')
-rw-r--r--drivers/infiniband/hw/ipath/ipath_driver.c103
1 files changed, 32 insertions, 71 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_driver.c b/drivers/infiniband/hw/ipath/ipath_driver.c
index 04e88b60055..bd0caedafe9 100644
--- a/drivers/infiniband/hw/ipath/ipath_driver.c
+++ b/drivers/infiniband/hw/ipath/ipath_driver.c
@@ -31,6 +31,7 @@
* SOFTWARE.
*/
+#include <linux/sched.h>
#include <linux/spinlock.h>
#include <linux/idr.h>
#include <linux/pci.h>
@@ -38,6 +39,9 @@
#include <linux/delay.h>
#include <linux/netdevice.h>
#include <linux/vmalloc.h>
+#include <linux/bitmap.h>
+#include <linux/slab.h>
+#include <linux/module.h>
#include "ipath_kernel.h"
#include "ipath_verbs.h"
@@ -123,24 +127,18 @@ const char *ipath_ibcstatus_str[] = {
"LTState1C", "LTState1D", "LTState1E", "LTState1F"
};
-static void __devexit ipath_remove_one(struct pci_dev *);
-static int __devinit ipath_init_one(struct pci_dev *,
- const struct pci_device_id *);
+static void ipath_remove_one(struct pci_dev *);
+static int ipath_init_one(struct pci_dev *, const struct pci_device_id *);
/* Only needed for registration, nothing else needs this info */
#define PCI_VENDOR_ID_PATHSCALE 0x1fc1
-#define PCI_VENDOR_ID_QLOGIC 0x1077
#define PCI_DEVICE_ID_INFINIPATH_HT 0xd
-#define PCI_DEVICE_ID_INFINIPATH_PE800 0x10
-#define PCI_DEVICE_ID_INFINIPATH_7220 0x7220
/* Number of seconds before our card status check... */
#define STATUS_TIMEOUT 60
static const struct pci_device_id ipath_pci_tbl[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_PATHSCALE, PCI_DEVICE_ID_INFINIPATH_HT) },
- { PCI_DEVICE(PCI_VENDOR_ID_PATHSCALE, PCI_DEVICE_ID_INFINIPATH_PE800) },
- { PCI_DEVICE(PCI_VENDOR_ID_QLOGIC, PCI_DEVICE_ID_INFINIPATH_7220) },
{ 0, }
};
@@ -149,7 +147,7 @@ MODULE_DEVICE_TABLE(pci, ipath_pci_tbl);
static struct pci_driver ipath_driver = {
.name = IPATH_DRV_NAME,
.probe = ipath_init_one,
- .remove = __devexit_p(ipath_remove_one),
+ .remove = ipath_remove_one,
.id_table = ipath_pci_tbl,
.driver = {
.groups = ipath_driver_attr_groups,
@@ -196,22 +194,17 @@ static struct ipath_devdata *ipath_alloc_devdata(struct pci_dev *pdev)
struct ipath_devdata *dd;
int ret;
- if (!idr_pre_get(&unit_table, GFP_KERNEL)) {
- dd = ERR_PTR(-ENOMEM);
- goto bail;
- }
-
- dd = vmalloc(sizeof(*dd));
+ dd = vzalloc(sizeof(*dd));
if (!dd) {
dd = ERR_PTR(-ENOMEM);
goto bail;
}
- memset(dd, 0, sizeof(*dd));
dd->ipath_unit = -1;
+ idr_preload(GFP_KERNEL);
spin_lock_irqsave(&ipath_devs_lock, flags);
- ret = idr_get_new(&unit_table, dd, &dd->ipath_unit);
+ ret = idr_alloc(&unit_table, dd, 0, 0, GFP_NOWAIT);
if (ret < 0) {
printk(KERN_ERR IPATH_DRV_NAME
": Could not allocate unit ID: error %d\n", -ret);
@@ -219,6 +212,7 @@ static struct ipath_devdata *ipath_alloc_devdata(struct pci_dev *pdev)
dd = ERR_PTR(ret);
goto bail_unlock;
}
+ dd->ipath_unit = ret;
dd->pcidev = pdev;
pci_set_drvdata(pdev, dd);
@@ -227,7 +221,7 @@ static struct ipath_devdata *ipath_alloc_devdata(struct pci_dev *pdev)
bail_unlock:
spin_unlock_irqrestore(&ipath_devs_lock, flags);
-
+ idr_preload_end();
bail:
return dd;
}
@@ -392,14 +386,14 @@ done:
ipath_enable_armlaunch(dd);
}
-static int __devinit ipath_init_one(struct pci_dev *pdev,
- const struct pci_device_id *ent)
+static void cleanup_device(struct ipath_devdata *dd);
+
+static int ipath_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
{
int ret, len, j;
struct ipath_devdata *dd;
unsigned long long addr;
u32 bar0 = 0, bar1 = 0;
- u8 rev;
dd = ipath_alloc_devdata(pdev);
if (IS_ERR(dd)) {
@@ -518,30 +512,9 @@ static int __devinit ipath_init_one(struct pci_dev *pdev,
/* setup the chip-specific functions, as early as possible. */
switch (ent->device) {
case PCI_DEVICE_ID_INFINIPATH_HT:
-#ifdef CONFIG_HT_IRQ
ipath_init_iba6110_funcs(dd);
break;
-#else
- ipath_dev_err(dd, "QLogic HT device 0x%x cannot work if "
- "CONFIG_HT_IRQ is not enabled\n", ent->device);
- return -ENODEV;
-#endif
- case PCI_DEVICE_ID_INFINIPATH_PE800:
-#ifdef CONFIG_PCI_MSI
- ipath_init_iba6120_funcs(dd);
- break;
-#else
- ipath_dev_err(dd, "QLogic PCIE device 0x%x cannot work if "
- "CONFIG_PCI_MSI is not enabled\n", ent->device);
- return -ENODEV;
-#endif
- case PCI_DEVICE_ID_INFINIPATH_7220:
-#ifndef CONFIG_PCI_MSI
- ipath_dbg("CONFIG_PCI_MSI is not enabled, "
- "using INTx for unit %u\n", dd->ipath_unit);
-#endif
- ipath_init_iba7220_funcs(dd);
- break;
+
default:
ipath_dev_err(dd, "Found unknown QLogic deviceid 0x%x, "
"failing\n", ent->device);
@@ -551,9 +524,8 @@ static int __devinit ipath_init_one(struct pci_dev *pdev,
for (j = 0; j < 6; j++) {
if (!pdev->resource[j].start)
continue;
- ipath_cdbg(VERBOSE, "BAR %d start %llx, end %llx, len %llx\n",
- j, (unsigned long long)pdev->resource[j].start,
- (unsigned long long)pdev->resource[j].end,
+ ipath_cdbg(VERBOSE, "BAR %d %pR, len %llx\n",
+ j, &pdev->resource[j],
(unsigned long long)pci_resource_len(pdev, j));
}
@@ -563,13 +535,7 @@ static int __devinit ipath_init_one(struct pci_dev *pdev,
goto bail_regions;
}
- ret = pci_read_config_byte(pdev, PCI_REVISION_ID, &rev);
- if (ret) {
- ipath_dev_err(dd, "Failed to read PCI revision ID unit "
- "%u: err %d\n", dd->ipath_unit, -ret);
- goto bail_regions; /* shouldn't ever happen */
- }
- dd->ipath_pcirev = rev;
+ dd->ipath_pcirev = pdev->revision;
#if defined(__powerpc__)
/* There isn't a generic way to specify writethrough mappings */
@@ -639,8 +605,13 @@ static int __devinit ipath_init_one(struct pci_dev *pdev,
goto bail;
bail_irqsetup:
- if (pdev->irq)
- free_irq(pdev->irq, dd);
+ cleanup_device(dd);
+
+ if (dd->ipath_irq)
+ dd->ipath_f_free_irq(dd);
+
+ if (dd->ipath_f_cleanup)
+ dd->ipath_f_cleanup(dd);
bail_iounmap:
iounmap((volatile void __iomem *) dd->ipath_kregbase);
@@ -658,7 +629,7 @@ bail:
return ret;
}
-static void __devexit cleanup_device(struct ipath_devdata *dd)
+static void cleanup_device(struct ipath_devdata *dd)
{
int port;
struct ipath_portdata **tmp;
@@ -761,7 +732,7 @@ static void __devexit cleanup_device(struct ipath_devdata *dd)
kfree(tmp);
}
-static void __devexit ipath_remove_one(struct pci_dev *pdev)
+static void ipath_remove_one(struct pci_dev *pdev)
{
struct ipath_devdata *dd = pci_get_drvdata(pdev);
@@ -773,7 +744,7 @@ static void __devexit ipath_remove_one(struct pci_dev *pdev)
*/
ipath_shutdown_device(dd);
- flush_scheduled_work();
+ flush_workqueue(ib_wq);
if (dd->verbs_dev)
ipath_unregister_ib_device(dd->verbs_dev);
@@ -1696,7 +1667,7 @@ void ipath_chg_pioavailkernel(struct ipath_devdata *dd, unsigned start,
unsigned len, int avail)
{
unsigned long flags;
- unsigned end, cnt = 0, next;
+ unsigned end, cnt = 0;
/* There are two bits per send buffer (busy and generation) */
start *= 2;
@@ -1747,12 +1718,7 @@ void ipath_chg_pioavailkernel(struct ipath_devdata *dd, unsigned start,
if (dd->ipath_pioupd_thresh) {
end = 2 * (dd->ipath_piobcnt2k + dd->ipath_piobcnt4k);
- next = find_first_bit(dd->ipath_pioavailkernel, end);
- while (next < end) {
- cnt++;
- next = find_next_bit(dd->ipath_pioavailkernel, end,
- next + 1);
- }
+ cnt = bitmap_weight(dd->ipath_pioavailkernel, end);
}
spin_unlock_irqrestore(&ipath_pioavail_lock, flags);
@@ -2415,7 +2381,7 @@ void ipath_shutdown_device(struct ipath_devdata *dd)
/*
* clear SerdesEnable and turn the leds off; do this here because
* we are unloading, so don't count on interrupts to move along
- * Turn the LEDs off explictly for the same reason.
+ * Turn the LEDs off explicitly for the same reason.
*/
dd->ipath_f_quiet_serdes(dd);
@@ -2534,11 +2500,6 @@ static int __init infinipath_init(void)
* the PCI subsystem.
*/
idr_init(&unit_table);
- if (!idr_pre_get(&unit_table, GFP_KERNEL)) {
- printk(KERN_ERR IPATH_DRV_NAME ": idr_pre_get() failed\n");
- ret = -ENOMEM;
- goto bail;
- }
ret = pci_register_driver(&ipath_driver);
if (ret < 0) {
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 23:01:27 +0000