xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Koodi Ongelmat Pull-pyynnöt Actions Paketit Projektit Julkaisut Wiki Toiminta

IB/ipath: Make send buffers available for kernel if not allocated to user

Selaa lähdekoodia 
A fixed partitioning of send buffers is determined at driver load time
for user processes and kernel use.  Since send buffers are a scarce
resource, it makes sense to allow the kernel to use the buffers if they
are not in use by a user process.

Also, eliminate code duplication for ipath_force_pio_avail_update().

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Ralph Campbell
2008-04-16 21:09:26 -07:00
committed by Roland Dreier
vanhempi 4330e4dad7
commit c4b4d16e09
8 muutettua tiedostoa jossa 228 lisäystä ja 148 poistoa
Download Patch File Download Diff File Expand all files Collapse all files

14
drivers/infiniband/hw/ipath/ipath_intr.c
Näytä tiedosto

@@ -804,7 +804,6 @@ void ipath_clear_freeze(struct ipath_devdata *dd)
{
int i, im;
u64 val;
unsigned long flags;
/* disable error interrupts, to avoid confusion */
ipath_write_kreg(dd, dd->ipath_kregs->kr_errormask, 0ULL);
@@ -823,14 +822,7 @@ void ipath_clear_freeze(struct ipath_devdata *dd)
dd->ipath_control);
/* ensure pio avail updates continue */
spin_lock_irqsave(&dd->ipath_sendctrl_lock, flags);
ipath_write_kreg(dd, dd->ipath_kregs->kr_sendctrl,
dd->ipath_sendctrl & ~INFINIPATH_S_PIOBUFAVAILUPD);
ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch);
ipath_write_kreg(dd, dd->ipath_kregs->kr_sendctrl,
dd->ipath_sendctrl);
ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch);
spin_unlock_irqrestore(&dd->ipath_sendctrl_lock, flags);
ipath_force_pio_avail_update(dd);
/*
* We just enabled pioavailupdate, so dma copy is almost certainly
@@ -842,7 +834,9 @@ void ipath_clear_freeze(struct ipath_devdata *dd)
i ^ 1 : i;
val = ipath_read_kreg64(dd, (0x1000 / sizeof(u64)) + im);
dd->ipath_pioavailregs_dma[i] = cpu_to_le64(val);
dd->ipath_pioavailshadow[i] = val;
dd->ipath_pioavailshadow[i] = val |
(~dd->ipath_pioavailkernel[i] <<
INFINIPATH_SENDPIOAVAIL_BUSY_SHIFT);
}
/*