diff options
Diffstat (limited to 'drivers/infiniband/hw/ipath')
-rw-r--r-- | drivers/infiniband/hw/ipath/ipath_file_ops.c | 23 | ||||
-rw-r--r-- | drivers/infiniband/hw/ipath/ipath_init_chip.c | 22 | ||||
-rw-r--r-- | drivers/infiniband/hw/ipath/ipath_kernel.h | 1 |
3 files changed, 45 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_file_ops.c b/drivers/infiniband/hw/ipath/ipath_file_ops.c index 17d4e970abd9..eab69dfdc28e 100644 --- a/drivers/infiniband/hw/ipath/ipath_file_ops.c +++ b/drivers/infiniband/hw/ipath/ipath_file_ops.c | |||
@@ -184,6 +184,29 @@ static int ipath_get_base_info(struct file *fp, | |||
184 | kinfo->spi_piobufbase = (u64) pd->port_piobufs + | 184 | kinfo->spi_piobufbase = (u64) pd->port_piobufs + |
185 | dd->ipath_palign * kinfo->spi_piocnt * slave; | 185 | dd->ipath_palign * kinfo->spi_piocnt * slave; |
186 | } | 186 | } |
187 | |||
188 | /* | ||
189 | * Set the PIO avail update threshold to no larger | ||
190 | * than the number of buffers per process. Note that | ||
191 | * we decrease it here, but won't ever increase it. | ||
192 | */ | ||
193 | if (dd->ipath_pioupd_thresh && | ||
194 | kinfo->spi_piocnt < dd->ipath_pioupd_thresh) { | ||
195 | unsigned long flags; | ||
196 | |||
197 | dd->ipath_pioupd_thresh = kinfo->spi_piocnt; | ||
198 | ipath_dbg("Decreased pio update threshold to %u\n", | ||
199 | dd->ipath_pioupd_thresh); | ||
200 | spin_lock_irqsave(&dd->ipath_sendctrl_lock, flags); | ||
201 | dd->ipath_sendctrl &= ~(INFINIPATH_S_UPDTHRESH_MASK | ||
202 | << INFINIPATH_S_UPDTHRESH_SHIFT); | ||
203 | dd->ipath_sendctrl |= dd->ipath_pioupd_thresh | ||
204 | << INFINIPATH_S_UPDTHRESH_SHIFT; | ||
205 | ipath_write_kreg(dd, dd->ipath_kregs->kr_sendctrl, | ||
206 | dd->ipath_sendctrl); | ||
207 | spin_unlock_irqrestore(&dd->ipath_sendctrl_lock, flags); | ||
208 | } | ||
209 | |||
187 | if (shared) { | 210 | if (shared) { |
188 | kinfo->spi_port_uregbase = (u64) dd->ipath_uregbase + | 211 | kinfo->spi_port_uregbase = (u64) dd->ipath_uregbase + |
189 | dd->ipath_ureg_align * pd->port_port; | 212 | dd->ipath_ureg_align * pd->port_port; |
diff --git a/drivers/infiniband/hw/ipath/ipath_init_chip.c b/drivers/infiniband/hw/ipath/ipath_init_chip.c index 720ff4df84eb..1adafa97e082 100644 --- a/drivers/infiniband/hw/ipath/ipath_init_chip.c +++ b/drivers/infiniband/hw/ipath/ipath_init_chip.c | |||
@@ -341,6 +341,7 @@ static int init_chip_reset(struct ipath_devdata *dd) | |||
341 | { | 341 | { |
342 | u32 rtmp; | 342 | u32 rtmp; |
343 | int i; | 343 | int i; |
344 | unsigned long flags; | ||
344 | 345 | ||
345 | /* | 346 | /* |
346 | * ensure chip does no sends or receives, tail updates, or | 347 | * ensure chip does no sends or receives, tail updates, or |
@@ -356,8 +357,13 @@ static int init_chip_reset(struct ipath_devdata *dd) | |||
356 | ipath_write_kreg(dd, dd->ipath_kregs->kr_rcvctrl, | 357 | ipath_write_kreg(dd, dd->ipath_kregs->kr_rcvctrl, |
357 | dd->ipath_rcvctrl); | 358 | dd->ipath_rcvctrl); |
358 | 359 | ||
360 | spin_lock_irqsave(&dd->ipath_sendctrl_lock, flags); | ||
361 | dd->ipath_sendctrl = 0U; /* no sdma, etc */ | ||
359 | ipath_write_kreg(dd, dd->ipath_kregs->kr_sendctrl, dd->ipath_sendctrl); | 362 | ipath_write_kreg(dd, dd->ipath_kregs->kr_sendctrl, dd->ipath_sendctrl); |
360 | ipath_write_kreg(dd, dd->ipath_kregs->kr_control, dd->ipath_control); | 363 | ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch); |
364 | spin_unlock_irqrestore(&dd->ipath_sendctrl_lock, flags); | ||
365 | |||
366 | ipath_write_kreg(dd, dd->ipath_kregs->kr_control, 0ULL); | ||
361 | 367 | ||
362 | rtmp = ipath_read_kreg32(dd, dd->ipath_kregs->kr_rcvtidcnt); | 368 | rtmp = ipath_read_kreg32(dd, dd->ipath_kregs->kr_rcvtidcnt); |
363 | if (rtmp != dd->ipath_rcvtidcnt) | 369 | if (rtmp != dd->ipath_rcvtidcnt) |
@@ -478,6 +484,14 @@ static void enable_chip(struct ipath_devdata *dd, int reinit) | |||
478 | /* Enable PIO send, and update of PIOavail regs to memory. */ | 484 | /* Enable PIO send, and update of PIOavail regs to memory. */ |
479 | dd->ipath_sendctrl = INFINIPATH_S_PIOENABLE | | 485 | dd->ipath_sendctrl = INFINIPATH_S_PIOENABLE | |
480 | INFINIPATH_S_PIOBUFAVAILUPD; | 486 | INFINIPATH_S_PIOBUFAVAILUPD; |
487 | |||
488 | /* | ||
489 | * Set the PIO avail update threshold to host memory | ||
490 | * on chips that support it. | ||
491 | */ | ||
492 | if (dd->ipath_pioupd_thresh) | ||
493 | dd->ipath_sendctrl |= dd->ipath_pioupd_thresh | ||
494 | << INFINIPATH_S_UPDTHRESH_SHIFT; | ||
481 | ipath_write_kreg(dd, dd->ipath_kregs->kr_sendctrl, dd->ipath_sendctrl); | 495 | ipath_write_kreg(dd, dd->ipath_kregs->kr_sendctrl, dd->ipath_sendctrl); |
482 | ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch); | 496 | ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch); |
483 | spin_unlock_irqrestore(&dd->ipath_sendctrl_lock, flags); | 497 | spin_unlock_irqrestore(&dd->ipath_sendctrl_lock, flags); |
@@ -757,6 +771,12 @@ int ipath_init_chip(struct ipath_devdata *dd, int reinit) | |||
757 | ipath_cdbg(VERBOSE, "%d PIO bufs for kernel out of %d total %u " | 771 | ipath_cdbg(VERBOSE, "%d PIO bufs for kernel out of %d total %u " |
758 | "each for %u user ports\n", kpiobufs, | 772 | "each for %u user ports\n", kpiobufs, |
759 | piobufs, dd->ipath_pbufsport, uports); | 773 | piobufs, dd->ipath_pbufsport, uports); |
774 | if (dd->ipath_pioupd_thresh) { | ||
775 | if (dd->ipath_pbufsport < dd->ipath_pioupd_thresh) | ||
776 | dd->ipath_pioupd_thresh = dd->ipath_pbufsport; | ||
777 | if (kpiobufs < dd->ipath_pioupd_thresh) | ||
778 | dd->ipath_pioupd_thresh = kpiobufs; | ||
779 | } | ||
760 | 780 | ||
761 | dd->ipath_f_early_init(dd); | 781 | dd->ipath_f_early_init(dd); |
762 | /* | 782 | /* |
diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h index 2447e85bf4f8..cef3296efb96 100644 --- a/drivers/infiniband/hw/ipath/ipath_kernel.h +++ b/drivers/infiniband/hw/ipath/ipath_kernel.h | |||
@@ -349,6 +349,7 @@ struct ipath_devdata { | |||
349 | u32 ipath_lastrpkts; | 349 | u32 ipath_lastrpkts; |
350 | /* pio bufs allocated per port */ | 350 | /* pio bufs allocated per port */ |
351 | u32 ipath_pbufsport; | 351 | u32 ipath_pbufsport; |
352 | u32 ipath_pioupd_thresh; /* update threshold, some chips */ | ||
352 | /* | 353 | /* |
353 | * number of ports configured as max; zero is set to number chip | 354 | * number of ports configured as max; zero is set to number chip |
354 | * supports, less gives more pio bufs/port, etc. | 355 | * supports, less gives more pio bufs/port, etc. |