diff options
author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-04-19 16:17:34 (GMT) |
---|---|---|
committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-04-19 16:17:34 (GMT) |
commit | cf816ecb533ab96b883dfdc0db174598b5b5c4d2 (patch) | |
tree | 1b7705db288ae2917105e624b01fdf81e0882bf1 /drivers/infiniband/hw/ipath/ipath_init_chip.c | |
parent | adf6d34e460387ee3e8f1e1875d52bff51212c7d (diff) | |
parent | 15f7d677ccff6f0f5de8a1ee43a792567e9f9de9 (diff) | |
download | linux-fsl-qoriq-cf816ecb533ab96b883dfdc0db174598b5b5c4d2.tar.xz |
Merge branch 'merge-fixes' into devel
Diffstat (limited to 'drivers/infiniband/hw/ipath/ipath_init_chip.c')
-rw-r--r-- | drivers/infiniband/hw/ipath/ipath_init_chip.c | 312 |
1 files changed, 197 insertions, 115 deletions
diff --git a/drivers/infiniband/hw/ipath/ipath_init_chip.c b/drivers/infiniband/hw/ipath/ipath_init_chip.c index 4471674..27dd894 100644 --- a/drivers/infiniband/hw/ipath/ipath_init_chip.c +++ b/drivers/infiniband/hw/ipath/ipath_init_chip.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2006, 2007 QLogic Corporation. All rights reserved. + * Copyright (c) 2006, 2007, 2008 QLogic Corporation. All rights reserved. * Copyright (c) 2003, 2004, 2005, 2006 PathScale, Inc. All rights reserved. * * This software is available to you under a choice of one of two @@ -155,24 +155,13 @@ static int bringup_link(struct ipath_devdata *dd) dd->ipath_control); /* - * Note that prior to try 14 or 15 of IB, the credit scaling - * wasn't working, because it was swapped for writes with the - * 1 bit default linkstate field + * set initial max size pkt IBC will send, including ICRC; it's the + * PIO buffer size in dwords, less 1; also see ipath_set_mtu() */ + val = (dd->ipath_ibmaxlen >> 2) + 1; + ibc = val << dd->ibcc_mpl_shift; - /* ignore pbc and align word */ - val = dd->ipath_piosize2k - 2 * sizeof(u32); - /* - * for ICRC, which we only send in diag test pkt mode, and we - * don't need to worry about that for mtu - */ - val += 1; - /* - * Set the IBC maxpktlength to the size of our pio buffers the - * maxpktlength is in words. This is *not* the IB data MTU. - */ - ibc = (val / sizeof(u32)) << INFINIPATH_IBCC_MAXPKTLEN_SHIFT; - /* in KB */ + /* flowcontrolwatermark is in units of KBytes */ ibc |= 0x5ULL << INFINIPATH_IBCC_FLOWCTRLWATERMARK_SHIFT; /* * How often flowctrl sent. More or less in usecs; balance against @@ -191,10 +180,13 @@ static int bringup_link(struct ipath_devdata *dd) /* * Want to start out with both LINKCMD and LINKINITCMD in NOP * (0 and 0). Don't put linkinitcmd in ipath_ibcctrl, want that - * to stay a NOP + * to stay a NOP. Flag that we are disabled, for the (unlikely) + * case that some recovery path is trying to bring the link up + * before we are ready. */ ibc |= INFINIPATH_IBCC_LINKINITCMD_DISABLE << INFINIPATH_IBCC_LINKINITCMD_SHIFT; + dd->ipath_flags |= IPATH_IB_LINK_DISABLED; ipath_cdbg(VERBOSE, "Writing 0x%llx to ibcctrl\n", (unsigned long long) ibc); ipath_write_kreg(dd, dd->ipath_kregs->kr_ibcctrl, ibc); @@ -227,17 +219,26 @@ static struct ipath_portdata *create_portdata0(struct ipath_devdata *dd) pd->port_cnt = 1; /* The port 0 pkey table is used by the layer interface. */ pd->port_pkeys[0] = IPATH_DEFAULT_P_KEY; + pd->port_seq_cnt = 1; } return pd; } -static int init_chip_first(struct ipath_devdata *dd, - struct ipath_portdata **pdp) +static int init_chip_first(struct ipath_devdata *dd) { - struct ipath_portdata *pd = NULL; + struct ipath_portdata *pd; int ret = 0; u64 val; + spin_lock_init(&dd->ipath_kernel_tid_lock); + spin_lock_init(&dd->ipath_user_tid_lock); + spin_lock_init(&dd->ipath_sendctrl_lock); + spin_lock_init(&dd->ipath_sdma_lock); + spin_lock_init(&dd->ipath_gpio_lock); + spin_lock_init(&dd->ipath_eep_st_lock); + spin_lock_init(&dd->ipath_sdepb_lock); + mutex_init(&dd->ipath_eep_lock); + /* * skip cfgports stuff because we are not allocating memory, * and we don't want problems if the portcnt changed due to @@ -250,12 +251,14 @@ static int init_chip_first(struct ipath_devdata *dd, else if (ipath_cfgports <= dd->ipath_portcnt) { dd->ipath_cfgports = ipath_cfgports; ipath_dbg("Configured to use %u ports out of %u in chip\n", - dd->ipath_cfgports, dd->ipath_portcnt); + dd->ipath_cfgports, ipath_read_kreg32(dd, + dd->ipath_kregs->kr_portcnt)); } else { dd->ipath_cfgports = dd->ipath_portcnt; ipath_dbg("Tried to configured to use %u ports; chip " "only supports %u\n", ipath_cfgports, - dd->ipath_portcnt); + ipath_read_kreg32(dd, + dd->ipath_kregs->kr_portcnt)); } /* * Allocate full portcnt array, rather than just cfgports, because @@ -295,12 +298,9 @@ static int init_chip_first(struct ipath_devdata *dd, val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_sendpiosize); dd->ipath_piosize2k = val & ~0U; dd->ipath_piosize4k = val >> 32; - /* - * Note: the chips support a maximum MTU of 4096, but the driver - * hasn't implemented this feature yet, so set the initial value - * to 2048. - */ - dd->ipath_ibmtu = 2048; + if (dd->ipath_piosize4k == 0 && ipath_mtu4096) + ipath_mtu4096 = 0; /* 4KB not supported by this chip */ + dd->ipath_ibmtu = ipath_mtu4096 ? 4096 : 2048; val = ipath_read_kreg64(dd, dd->ipath_kregs->kr_sendpiobufcnt); dd->ipath_piobcnt2k = val & ~0U; dd->ipath_piobcnt4k = val >> 32; @@ -328,43 +328,46 @@ static int init_chip_first(struct ipath_devdata *dd, else ipath_dbg("%u 2k piobufs @ %p\n", dd->ipath_piobcnt2k, dd->ipath_pio2kbase); - spin_lock_init(&dd->ipath_tid_lock); - spin_lock_init(&dd->ipath_sendctrl_lock); - spin_lock_init(&dd->ipath_gpio_lock); - spin_lock_init(&dd->ipath_eep_st_lock); - mutex_init(&dd->ipath_eep_lock); - done: - *pdp = pd; return ret; } /** * init_chip_reset - re-initialize after a reset, or enable * @dd: the infinipath device - * @pdp: output for port data * * sanity check at least some of the values after reset, and * ensure no receive or transmit (explictly, in case reset * failed */ -static int init_chip_reset(struct ipath_devdata *dd, - struct ipath_portdata **pdp) +static int init_chip_reset(struct ipath_devdata *dd) { u32 rtmp; + int i; + unsigned long flags; + + /* + * ensure chip does no sends or receives, tail updates, or + * pioavail updates while we re-initialize + */ + dd->ipath_rcvctrl &= ~(1ULL << dd->ipath_r_tailupd_shift); + for (i = 0; i < dd->ipath_portcnt; i++) { + clear_bit(dd->ipath_r_portenable_shift + i, + &dd->ipath_rcvctrl); + clear_bit(dd->ipath_r_intravail_shift + i, + &dd->ipath_rcvctrl); + } + ipath_write_kreg(dd, dd->ipath_kregs->kr_rcvctrl, + dd->ipath_rcvctrl); - *pdp = dd->ipath_pd[0]; - /* ensure chip does no sends or receives while we re-initialize */ - dd->ipath_control = dd->ipath_sendctrl = dd->ipath_rcvctrl = 0U; - ipath_write_kreg(dd, dd->ipath_kregs->kr_rcvctrl, dd->ipath_rcvctrl); + spin_lock_irqsave(&dd->ipath_sendctrl_lock, flags); + dd->ipath_sendctrl = 0U; /* no sdma, etc */ ipath_write_kreg(dd, dd->ipath_kregs->kr_sendctrl, dd->ipath_sendctrl); - ipath_write_kreg(dd, dd->ipath_kregs->kr_control, dd->ipath_control); + ipath_read_kreg64(dd, dd->ipath_kregs->kr_scratch); + spin_unlock_irqrestore(&dd->ipath_sendctrl_lock, flags); + + ipath_write_kreg(dd, dd->ipath_kregs->kr_control, 0ULL); - rtmp = ipath_read_kreg32(dd, dd->ipath_kregs->kr_portcnt); - if (dd->ipath_portcnt != rtmp) - dev_info(&dd->pcidev->dev, "portcnt was %u before " - "reset, now %u, using original\n", - dd->ipath_portcnt, rtmp); rtmp = ipath_read_kreg32(dd, dd->ipath_kregs->kr_rcvtidcnt); if (rtmp != dd->ipath_rcvtidcnt) dev_info(&dd->pcidev->dev, "tidcnt was %u before " @@ -467,10 +470,10 @@ static void init_shadow_tids(struct ipath_devdata *dd) dd->ipath_physshadow = addrs; } -static void enable_chip(struct ipath_devdata *dd, - struct ipath_portdata *pd, int reinit) +static void enable_chip(struct ipath_devdata *dd, int reinit) { u32 val; + u64 rcvmask; unsigned long flags; int i; @@ -484,17 +487,28 @@ static void enable_chip(struct ipath_devdata *dd, /* Enable PIO send, and update of PIOavail regs to memory. */ dd->ipath_sendctrl = INFINIPATH_S_PIOENABLE | INFINIPATH_S_PIOBUFAVAILUPD; + + /* + * Set the PIO avail update threshold to host memory + * on chips that support it. + */ + if (dd->ipath_pioupd_thresh) + dd->ipath_sendctrl |= dd->ipath_pioupd_thresh + << INFINIPATH_S_UPDTHRESH_SHIFT; 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); /* - * enable port 0 receive, and receive interrupt. other ports - * done as user opens and inits them. + * Enable kernel ports' receive and receive interrupt. + * Other ports done as user opens and inits them. */ - dd->ipath_rcvctrl = (1ULL << dd->ipath_r_tailupd_shift) | - (1ULL << dd->ipath_r_portenable_shift) | - (1ULL << dd->ipath_r_intravail_shift); + rcvmask = 1ULL; + dd->ipath_rcvctrl |= (rcvmask << dd->ipath_r_portenable_shift) | + (rcvmask << dd->ipath_r_intravail_shift); + if (!(dd->ipath_flags & IPATH_NODMA_RTAIL)) + dd->ipath_rcvctrl |= (1ULL << dd->ipath_r_tailupd_shift); + ipath_write_kreg(dd, dd->ipath_kregs->kr_rcvctrl, dd->ipath_rcvctrl); @@ -505,16 +519,16 @@ static void enable_chip(struct ipath_devdata *dd, dd->ipath_flags |= IPATH_INITTED; /* - * init our shadow copies of head from tail values, and write - * head values to match. + * Init our shadow copies of head from tail values, + * and write head values to match. */ val = ipath_read_ureg32(dd, ur_rcvegrindextail, 0); - (void)ipath_write_ureg(dd, ur_rcvegrindexhead, val, 0); + ipath_write_ureg(dd, ur_rcvegrindexhead, val, 0); /* Initialize so we interrupt on next packet received */ - (void)ipath_write_ureg(dd, ur_rcvhdrhead, - dd->ipath_rhdrhead_intr_off | - dd->ipath_pd[0]->port_head, 0); + ipath_write_ureg(dd, ur_rcvhdrhead, + dd->ipath_rhdrhead_intr_off | + dd->ipath_pd[0]->port_head, 0); /* * by now pioavail updates to memory should have occurred, so @@ -523,25 +537,26 @@ static void enable_chip(struct ipath_devdata *dd, * initial values of the generation bit correct. */ for (i = 0; i < dd->ipath_pioavregs; i++) { - __le64 val; + __le64 pioavail; /* * Chip Errata bug 6641; even and odd qwords>3 are swapped. */ if (i > 3 && (dd->ipath_flags & IPATH_SWAP_PIOBUFS)) - val = dd->ipath_pioavailregs_dma[i ^ 1]; + pioavail = dd->ipath_pioavailregs_dma[i ^ 1]; else - val = dd->ipath_pioavailregs_dma[i]; - dd->ipath_pioavailshadow[i] = le64_to_cpu(val); + pioavail = dd->ipath_pioavailregs_dma[i]; + dd->ipath_pioavailshadow[i] = le64_to_cpu(pioavail) | + (~dd->ipath_pioavailkernel[i] << + INFINIPATH_SENDPIOAVAIL_BUSY_SHIFT); } /* can get counters, stats, etc. */ dd->ipath_flags |= IPATH_PRESENT; } -static int init_housekeeping(struct ipath_devdata *dd, - struct ipath_portdata **pdp, int reinit) +static int init_housekeeping(struct ipath_devdata *dd, int reinit) { - char boardn[32]; + char boardn[40]; int ret = 0; /* @@ -600,18 +615,9 @@ static int init_housekeeping(struct ipath_devdata *dd, ipath_write_kreg(dd, dd->ipath_kregs->kr_errorclear, INFINIPATH_E_RESET); - if (reinit) - ret = init_chip_reset(dd, pdp); - else - ret = init_chip_first(dd, pdp); - - if (ret) - goto done; - - ipath_cdbg(VERBOSE, "Revision %llx (PCI %x), %u ports, %u tids, " - "%u egrtids\n", (unsigned long long) dd->ipath_revision, - dd->ipath_pcirev, dd->ipath_portcnt, dd->ipath_rcvtidcnt, - dd->ipath_rcvegrcnt); + ipath_cdbg(VERBOSE, "Revision %llx (PCI %x)\n", + (unsigned long long) dd->ipath_revision, + dd->ipath_pcirev); if (((dd->ipath_revision >> INFINIPATH_R_SOFTWARE_SHIFT) & INFINIPATH_R_SOFTWARE_MASK) != IPATH_CHIP_SWVERSION) { @@ -650,10 +656,39 @@ static int init_housekeeping(struct ipath_devdata *dd, ipath_dbg("%s", dd->ipath_boardversion); + if (ret) + goto done; + + if (reinit) + ret = init_chip_reset(dd); + else + ret = init_chip_first(dd); + done: return ret; } +static void verify_interrupt(unsigned long opaque) +{ + struct ipath_devdata *dd = (struct ipath_devdata *) opaque; + + if (!dd) + return; /* being torn down */ + + /* + * If we don't have any interrupts, let the user know and + * don't bother checking again. + */ + if (dd->ipath_int_counter == 0) { + if (!dd->ipath_f_intr_fallback(dd)) + dev_err(&dd->pcidev->dev, "No interrupts detected, " + "not usable.\n"); + else /* re-arm the timer to see if fallback works */ + mod_timer(&dd->ipath_intrchk_timer, jiffies + HZ/2); + } else + ipath_cdbg(VERBOSE, "%u interrupts at timer check\n", + dd->ipath_int_counter); +} /** * ipath_init_chip - do the actual initialization sequence on the chip @@ -676,11 +711,11 @@ int ipath_init_chip(struct ipath_devdata *dd, int reinit) u32 val32, kpiobufs; u32 piobufs, uports; u64 val; - struct ipath_portdata *pd = NULL; /* keep gcc4 happy */ + struct ipath_portdata *pd; gfp_t gfp_flags = GFP_USER | __GFP_COMP; unsigned long flags; - ret = init_housekeeping(dd, &pd, reinit); + ret = init_housekeeping(dd, reinit); if (ret) goto done; @@ -700,7 +735,7 @@ int ipath_init_chip(struct ipath_devdata *dd, int reinit) * we now use routines that backend onto __get_free_pages, the * rest would be wasted. */ - dd->ipath_rcvhdrcnt = dd->ipath_rcvegrcnt; + dd->ipath_rcvhdrcnt = max(dd->ipath_p0_rcvegrcnt, dd->ipath_rcvegrcnt); ipath_write_kreg(dd, dd->ipath_kregs->kr_rcvhdrcnt, dd->ipath_rcvhdrcnt); @@ -731,8 +766,8 @@ int ipath_init_chip(struct ipath_devdata *dd, int reinit) if (kpiobufs + (uports * IPATH_MIN_USER_PORT_BUFCNT) > piobufs) { int i = (int) piobufs - (int) (uports * IPATH_MIN_USER_PORT_BUFCNT); - if (i < 0) - i = 0; + if (i < 1) + i = 1; dev_info(&dd->pcidev->dev, "Allocating %d PIO bufs of " "%d for kernel leaves too few for %d user ports " "(%d each); using %u\n", kpiobufs, @@ -751,24 +786,40 @@ int ipath_init_chip(struct ipath_devdata *dd, int reinit) ipath_dbg("allocating %u pbufs/port leaves %u unused, " "add to kernel\n", dd->ipath_pbufsport, val32); dd->ipath_lastport_piobuf -= val32; + kpiobufs += val32; ipath_dbg("%u pbufs/port leaves %u unused, add to kernel\n", dd->ipath_pbufsport, val32); } - dd->ipath_lastpioindex = dd->ipath_lastport_piobuf; + dd->ipath_lastpioindex = 0; + dd->ipath_lastpioindexl = dd->ipath_piobcnt2k; + ipath_chg_pioavailkernel(dd, 0, piobufs, 1); ipath_cdbg(VERBOSE, "%d PIO bufs for kernel out of %d total %u " "each for %u user ports\n", kpiobufs, piobufs, dd->ipath_pbufsport, uports); + if (dd->ipath_pioupd_thresh) { + if (dd->ipath_pbufsport < dd->ipath_pioupd_thresh) + dd->ipath_pioupd_thresh = dd->ipath_pbufsport; + if (kpiobufs < dd->ipath_pioupd_thresh) + dd->ipath_pioupd_thresh = kpiobufs; + } + + ret = dd->ipath_f_early_init(dd); + if (ret) { + ipath_dev_err(dd, "Early initialization failure\n"); + goto done; + } - dd->ipath_f_early_init(dd); /* - * cancel any possible active sends from early driver load. + * Cancel any possible active sends from early driver load. * Follows early_init because some chips have to initialize * PIO buffers in early_init to avoid false parity errors. */ ipath_cancel_sends(dd, 0); - /* early_init sets rcvhdrentsize and rcvhdrsize, so this must be - * done after early_init */ + /* + * Early_init sets rcvhdrentsize and rcvhdrsize, so this must be + * done after early_init. + */ dd->ipath_hdrqlast = dd->ipath_rcvhdrentsize * (dd->ipath_rcvhdrcnt - 1); ipath_write_kreg(dd, dd->ipath_kregs->kr_rcvhdrentsize, @@ -783,8 +834,8 @@ int ipath_init_chip(struct ipath_devdata *dd, int reinit) goto done; } - (void)ipath_write_kreg(dd, dd->ipath_kregs->kr_sendpioavailaddr, - dd->ipath_pioavailregs_phys); + ipath_write_kreg(dd, dd->ipath_kregs->kr_sendpioavailaddr, + dd->ipath_pioavailregs_phys); /* * this is to detect s/w errors, which the h/w works around by * ignoring the low 6 bits of address, if it wasn't aligned. @@ -843,58 +894,65 @@ int ipath_init_chip(struct ipath_devdata *dd, int reinit) /* enable errors that are masked, at least this first time. */ ipath_write_kreg(dd, dd->ipath_kregs->kr_errormask, ~dd->ipath_maskederrs); - dd->ipath_errormask = ipath_read_kreg64(dd, - dd->ipath_kregs->kr_errormask); + dd->ipath_maskederrs = 0; /* don't re-enable ignored in timer */ + dd->ipath_errormask = + ipath_read_kreg64(dd, dd->ipath_kregs->kr_errormask); /* clear any interrupts up to this point (ints still not enabled) */ ipath_write_kreg(dd, dd->ipath_kregs->kr_intclear, -1LL); + dd->ipath_f_tidtemplate(dd); + /* * Set up the port 0 (kernel) rcvhdr q and egr TIDs. If doing * re-init, the simplest way to handle this is to free * existing, and re-allocate. * Need to re-create rest of port 0 portdata as well. */ + pd = dd->ipath_pd[0]; if (reinit) { - /* Alloc and init new ipath_portdata for port0, + struct ipath_portdata *npd; + + /* + * Alloc and init new ipath_portdata for port0, * Then free old pd. Could lead to fragmentation, but also * makes later support for hot-swap easier. */ - struct ipath_portdata *npd; npd = create_portdata0(dd); if (npd) { ipath_free_pddata(dd, pd); - dd->ipath_pd[0] = pd = npd; + dd->ipath_pd[0] = npd; + pd = npd; } else { - ipath_dev_err(dd, "Unable to allocate portdata for" - " port 0, failing\n"); + ipath_dev_err(dd, "Unable to allocate portdata" + " for port 0, failing\n"); ret = -ENOMEM; goto done; } } - dd->ipath_f_tidtemplate(dd); ret = ipath_create_rcvhdrq(dd, pd); - if (!ret) { - dd->ipath_hdrqtailptr = - (volatile __le64 *)pd->port_rcvhdrtail_kvaddr; + if (!ret) ret = create_port0_egr(dd); - } - if (ret) - ipath_dev_err(dd, "failed to allocate port 0 (kernel) " + if (ret) { + ipath_dev_err(dd, "failed to allocate kernel port's " "rcvhdrq and/or egr bufs\n"); + goto done; + } else - enable_chip(dd, pd, reinit); - + enable_chip(dd, reinit); - if (!ret && !reinit) { - /* used when we close a port, for DMA already in flight at close */ + if (!reinit) { + /* + * Used when we close a port, for DMA already in flight + * at close. + */ dd->ipath_dummy_hdrq = dma_alloc_coherent( - &dd->pcidev->dev, pd->port_rcvhdrq_size, + &dd->pcidev->dev, dd->ipath_pd[0]->port_rcvhdrq_size, &dd->ipath_dummy_hdrq_phys, gfp_flags); - if (!dd->ipath_dummy_hdrq ) { + if (!dd->ipath_dummy_hdrq) { dev_info(&dd->pcidev->dev, "Couldn't allocate 0x%lx bytes for dummy hdrq\n", - pd->port_rcvhdrq_size); + dd->ipath_pd[0]->port_rcvhdrq_size); /* fallback to just 0'ing */ dd->ipath_dummy_hdrq_phys = 0UL; } @@ -906,7 +964,7 @@ int ipath_init_chip(struct ipath_devdata *dd, int reinit) */ ipath_write_kreg(dd, dd->ipath_kregs->kr_intclear, 0ULL); - if(!dd->ipath_stats_timer_active) { + if (!dd->ipath_stats_timer_active) { /* * first init, or after an admin disable/enable * set up stats retrieval timer, even if we had errors @@ -922,6 +980,16 @@ int ipath_init_chip(struct ipath_devdata *dd, int reinit) dd->ipath_stats_timer_active = 1; } + /* Set up SendDMA if chip supports it */ + if (dd->ipath_flags & IPATH_HAS_SEND_DMA) + ret = setup_sdma(dd); + + /* Set up HoL state */ + init_timer(&dd->ipath_hol_timer); + dd->ipath_hol_timer.function = ipath_hol_event; + dd->ipath_hol_timer.data = (unsigned long)dd; + dd->ipath_hol_state = IPATH_HOL_UP; + done: if (!ret) { *dd->ipath_statusp |= IPATH_STATUS_CHIP_PRESENT; @@ -934,6 +1002,20 @@ done: 0ULL); /* chip is usable; mark it as initialized */ *dd->ipath_statusp |= IPATH_STATUS_INITTED; + + /* + * setup to verify we get an interrupt, and fallback + * to an alternate if necessary and possible + */ + if (!reinit) { + init_timer(&dd->ipath_intrchk_timer); + dd->ipath_intrchk_timer.function = + verify_interrupt; + dd->ipath_intrchk_timer.data = + (unsigned long) dd; + } + dd->ipath_intrchk_timer.expires = jiffies + HZ/2; + add_timer(&dd->ipath_intrchk_timer); } else ipath_dev_err(dd, "No interrupts enabled, couldn't " "setup interrupt address\n"); |