* SOFTWARE.
*/
+#include <linux/sched.h>
#include <linux/spinlock.h>
#include <linux/idr.h>
#include <linux/pci.h>
#include <linux/delay.h>
#include <linux/netdevice.h>
#include <linux/vmalloc.h>
+#include <linux/bitmap.h>
+#include <linux/slab.h>
#include "ipath_kernel.h"
#include "ipath_verbs.h"
goto bail_disable;
}
- ret = pci_set_dma_mask(pdev, DMA_64BIT_MASK);
+ ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
if (ret) {
/*
* if the 64 bit setup fails, try 32 bit. Some systems
* do not setup 64 bit maps on systems with 2GB or less
* memory installed.
*/
- ret = pci_set_dma_mask(pdev, DMA_32BIT_MASK);
+ ret = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
if (ret) {
dev_info(&pdev->dev,
"Unable to set DMA mask for unit %u: %d\n",
}
else {
ipath_dbg("No 64bit DMA mask, used 32 bit mask\n");
- ret = pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK);
+ ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
if (ret)
dev_info(&pdev->dev,
"Unable to set DMA consistent mask "
}
}
else {
- ret = pci_set_consistent_dma_mask(pdev, DMA_64BIT_MASK);
+ ret = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
if (ret)
dev_info(&pdev->dev,
"Unable to set DMA consistent mask "
static void __devexit cleanup_device(struct ipath_devdata *dd)
{
int port;
+ struct ipath_portdata **tmp;
+ unsigned long flags;
if (*dd->ipath_statusp & IPATH_STATUS_CHIP_PRESENT) {
/* can't do anything more with chip; needs re-init */
/*
* free any resources still in use (usually just kernel ports)
- * at unload; we do for portcnt, not cfgports, because cfgports
- * could have changed while we were loaded.
+ * at unload; we do for portcnt, because that's what we allocate.
+ * We acquire lock to be really paranoid that ipath_pd isn't being
+ * accessed from some interrupt-related code (that should not happen,
+ * but best to be sure).
*/
+ spin_lock_irqsave(&dd->ipath_uctxt_lock, flags);
+ tmp = dd->ipath_pd;
+ dd->ipath_pd = NULL;
+ spin_unlock_irqrestore(&dd->ipath_uctxt_lock, flags);
for (port = 0; port < dd->ipath_portcnt; port++) {
- struct ipath_portdata *pd = dd->ipath_pd[port];
- dd->ipath_pd[port] = NULL;
+ struct ipath_portdata *pd = tmp[port];
+ tmp[port] = NULL; /* debugging paranoia */
ipath_free_pddata(dd, pd);
}
- kfree(dd->ipath_pd);
- /*
- * debuggability, in case some cleanup path tries to use it
- * after this
- */
- dd->ipath_pd = NULL;
+ kfree(tmp);
}
static void __devexit ipath_remove_one(struct pci_dev *pdev)
*/
ipath_cdbg(ERRPKT, "Error Pkt, but no eflags! egrbuf"
" %x, len %x hdrq+%x rhf: %Lx\n",
- etail, tlen, l,
+ etail, tlen, l, (unsigned long long)
le64_to_cpu(*(__le64 *) rhf_addr));
if (ipath_debug & __IPATH_ERRPKTDBG) {
u32 j, *d, dw = rsize-2;
0xaaaaaaaaaaaaaaaaULL); /* All BUSY bits in qword */
if (oldval != dd->ipath_pioavailshadow[i])
ipath_dbg("shadow[%d] was %Lx, now %lx\n",
- i, oldval, dd->ipath_pioavailshadow[i]);
+ i, (unsigned long long) oldval,
+ dd->ipath_pioavailshadow[i]);
}
spin_unlock_irqrestore(&ipath_pioavail_lock, flags);
}
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;
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);
{
int ret, i;
struct ipath_devdata *dd = ipath_lookup(unit);
+ unsigned long flags;
if (!dd) {
ret = -ENODEV;
goto bail;
}
+ spin_lock_irqsave(&dd->ipath_uctxt_lock, flags);
if (dd->ipath_pd)
for (i = 1; i < dd->ipath_cfgports; i++) {
- if (dd->ipath_pd[i] && dd->ipath_pd[i]->port_cnt) {
- ipath_dbg("unit %u port %d is in use "
- "(PID %u cmd %s), can't reset\n",
- unit, i,
- pid_nr(dd->ipath_pd[i]->port_pid),
- dd->ipath_pd[i]->port_comm);
- ret = -EBUSY;
- goto bail;
- }
+ if (!dd->ipath_pd[i] || !dd->ipath_pd[i]->port_cnt)
+ continue;
+ spin_unlock_irqrestore(&dd->ipath_uctxt_lock, flags);
+ ipath_dbg("unit %u port %d is in use "
+ "(PID %u cmd %s), can't reset\n",
+ unit, i,
+ pid_nr(dd->ipath_pd[i]->port_pid),
+ dd->ipath_pd[i]->port_comm);
+ ret = -EBUSY;
+ goto bail;
}
+ spin_unlock_irqrestore(&dd->ipath_uctxt_lock, flags);
if (dd->ipath_flags & IPATH_HAS_SEND_DMA)
teardown_sdma(dd);
{
int i, sub, any = 0;
struct pid *pid;
+ unsigned long flags;
if (!dd->ipath_pd)
return 0;
+
+ spin_lock_irqsave(&dd->ipath_uctxt_lock, flags);
for (i = 1; i < dd->ipath_cfgports; i++) {
if (!dd->ipath_pd[i] || !dd->ipath_pd[i]->port_cnt)
continue;
any++;
}
}
+ spin_unlock_irqrestore(&dd->ipath_uctxt_lock, flags);
return any;
}
* to prevent HoL blocking, then start the HoL timer that
* periodically continues, then stop procs, so they can detect
* link down if they want, and do something about it.
- * Timer may already be running, so use __mod_timer, not add_timer.
+ * Timer may already be running, so use mod_timer, not add_timer.
*/
void ipath_hol_down(struct ipath_devdata *dd)
{
dd->ipath_hol_next = IPATH_HOL_DOWNCONT;
dd->ipath_hol_timer.expires = jiffies +
msecs_to_jiffies(ipath_hol_timeout_ms);
- __mod_timer(&dd->ipath_hol_timer, dd->ipath_hol_timer.expires);
+ mod_timer(&dd->ipath_hol_timer, dd->ipath_hol_timer.expires);
}
/*
else {
dd->ipath_hol_timer.expires = jiffies +
msecs_to_jiffies(ipath_hol_timeout_ms);
- __mod_timer(&dd->ipath_hol_timer,
+ mod_timer(&dd->ipath_hol_timer,
dd->ipath_hol_timer.expires);
}
}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff