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C++ qib_dev_err函数代码示例

原作者: [db:作者] 来自: [db:来源] 收藏 邀请

本文整理汇总了C++中qib_dev_err函数的典型用法代码示例。如果您正苦于以下问题：C++ qib_dev_err函数的具体用法？C++ qib_dev_err怎么用？C++ qib_dev_err使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。



在下文中一共展示了qib_dev_err函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。

示例1: qib_bad_intrstatus

void qib_bad_intrstatus(struct qib_devdata *dd)
{
	static int allbits;

	/* separate routine, for better optimization of qib_intr() */

	/*
	 * We print the message and disable interrupts, in hope of
	 * having a better chance of debugging the problem.
	 */
	qib_dev_err(dd,
		"Read of chip interrupt status failed disabling interrupts\n");
	if (allbits++) {
		/* disable interrupt delivery, something is very wrong */
		if (allbits == 2)
			dd->f_set_intr_state(dd, 0);
		if (allbits == 3) {
			qib_dev_err(dd,
				"2nd bad interrupt status, unregistering interrupts\n");
			dd->flags |= QIB_BADINTR;
			dd->flags &= ~QIB_INITTED;
			dd->f_free_irq(dd);
		}
	}
}
开发者ID:03199618，项目名称:linux，代码行数:25，代码来源:qib_intr.c


示例2: qib_msi_setup

/**
 * We save the msi lo and hi values, so we can restore them after
 * chip reset (the kernel PCI infrastructure doesn't yet handle that
 * correctly.
 */
static int qib_msi_setup(struct qib_devdata *dd, int pos)
{
	struct pci_dev *pdev = dd->pcidev;
	u16 control;
	int ret;

	ret = pci_enable_msi(pdev);
	if (ret)
		qib_dev_err(dd, "pci_enable_msi failed: %d, "
			    "interrupts may not work\n", ret);
	/* continue even if it fails, we may still be OK... */


	pci_read_config_dword(pdev, pos + PCI_MSI_ADDRESS_LO,
			      &dd->msi_lo);
	pci_read_config_dword(pdev, pos + PCI_MSI_ADDRESS_HI,
			      &dd->msi_hi);
	pci_read_config_word(pdev, pos + PCI_MSI_FLAGS, &control);
	/* now save the data (vector) info */
	pci_read_config_word(pdev, pos + ((control & PCI_MSI_FLAGS_64BIT)
				    ? 12 : 8),
			     &dd->msi_data);
	qib_cdbg(VERBOSE, "Read msi data 0x%x from config offset "
		 "0x%x, control=0x%x\n", dd->msi_data,
		 pos + ((control & PCI_MSI_FLAGS_64BIT) ? 12 : 8),
		 control);
	return ret;
}
开发者ID:HobbesOSR，项目名称:kitten，代码行数:33，代码来源:qib_pcie.c


示例3: qib_msix_setup

static void qib_msix_setup(struct qib_devdata *dd, int pos, u32 *msixcnt,
			   struct msix_entry *msix_entry)
{
	int ret;
	u32 tabsize = 0;
	u16 msix_flags;

	pci_read_config_word(dd->pcidev, pos + PCI_MSIX_FLAGS, &msix_flags);
	tabsize = 1 + (msix_flags & PCI_MSIX_FLAGS_QSIZE);
	if (tabsize > *msixcnt)
		tabsize = *msixcnt;
	ret = pci_enable_msix(dd->pcidev, msix_entry, tabsize);
	if (ret > 0) {
		tabsize = ret;
		ret = pci_enable_msix(dd->pcidev, msix_entry, tabsize);
	}
	if (ret) {
		qib_dev_err(dd, "pci_enable_msix %d vectors failed: %d, "
			    "falling back to INTx\n", tabsize, ret);
		tabsize = 0;
	}
	*msixcnt = tabsize;

	if (ret)
		qib_enable_intx(dd->pcidev);

}
开发者ID:33d，项目名称:linux-2.6.21-hh20，代码行数:27，代码来源:qib_pcie.c


示例4: qib_reinit_intr

/*
 * Setup pcie interrupt stuff again after a reset.  I'd like to just call
 * pci_enable_msi() again for msi, but when I do that,
 * the MSI enable bit doesn't get set in the command word, and
 * we switch to to a different interrupt vector, which is confusing,
 * so I instead just do it all inline.  Perhaps somehow can tie this
 * into the PCIe hotplug support at some point
 */
int qib_reinit_intr(struct qib_devdata *dd)
{
	int pos;
	u16 control;
	int ret = 0;

	if (!dd->msi_lo)
		/* we weren't using MSI, so don't restore it */
		goto bail;

#ifdef CONFIG_PCI_MSI
	pos = pci_find_capability(dd->pcidev, PCI_CAP_ID_MSI);
	if (!pos) {
		qib_dev_err(dd, "Can't find MSI capability, "
			    "can't restore MSI settings\n");
		ret = 0;
		/* nothing special for MSIx, just MSI */
		goto bail;
	}
	qib_cdbg(VERBOSE, "Writing msi_lo 0x%x to config offset 0x%x\n",
		 dd->msi_lo, pos + PCI_MSI_ADDRESS_LO);
	pci_write_config_dword(dd->pcidev, pos + PCI_MSI_ADDRESS_LO,
			       dd->msi_lo);
	qib_cdbg(VERBOSE, "Writing msi_lo 0x%x to config offset 0x%x\n",
		 dd->msi_hi, pos + PCI_MSI_ADDRESS_HI);
	pci_write_config_dword(dd->pcidev, pos + PCI_MSI_ADDRESS_HI,
			       dd->msi_hi);
	pci_read_config_word(dd->pcidev, pos + PCI_MSI_FLAGS, &control);
	if (!(control & PCI_MSI_FLAGS_ENABLE)) {
		qib_cdbg(INIT, "MSI control at off %x was %x, "
			 "setting MSI enable (%x)\n", pos + PCI_MSI_FLAGS,
			 control, control | PCI_MSI_FLAGS_ENABLE);
		control |= PCI_MSI_FLAGS_ENABLE;
		pci_write_config_word(dd->pcidev, pos + PCI_MSI_FLAGS,
				      control);
	}
	/* now rewrite the data (vector) info */
	pci_write_config_word(dd->pcidev, pos +
			      ((control & PCI_MSI_FLAGS_64BIT) ? 12 : 8),
			      dd->msi_data);
	ret = 1;
#endif /* CONFIG_PCI_MSI */
bail:
	if (!ret && (dd->flags & QIB_HAS_INTX)) {
		qib_cdbg(INIT, "Using INTx, MSI disabled or not configured\n");
		qib_enable_intx(dd->pcidev);
		ret = 1;
	}

	/* and now set the pci master bit again */
	pci_set_master(dd->pcidev);

	return ret;
}
开发者ID:HobbesOSR，项目名称:kitten，代码行数:62，代码来源:qib_pcie.c


示例5: qib_bad_intrstatus

void qib_bad_intrstatus(struct qib_devdata *dd)
{
	static int allbits;

	

	qib_dev_err(dd, "Read of chip interrupt status failed"
		    " disabling interrupts\n");
	if (allbits++) {
		
		if (allbits == 2)
			dd->f_set_intr_state(dd, 0);
		if (allbits == 3) {
			qib_dev_err(dd, "2nd bad interrupt status, "
				    "unregistering interrupts\n");
			dd->flags |= QIB_BADINTR;
			dd->flags &= ~QIB_INITTED;
			dd->f_free_irq(dd);
		}
	}
}
开发者ID:DirtyDroidX，项目名称:android_kernel_htc_m8ul，代码行数:21，代码来源:qib_intr.c


示例6: store_led_override

static ssize_t store_led_override(struct qib_pportdata *ppd, const char *buf,
				  size_t count)
{
	struct qib_devdata *dd = ppd->dd;
	int ret;
	u16 val;

	ret = qib_parse_ushort(buf, &val);
	if (ret > 0)
		qib_set_led_override(ppd, val);
	else
		qib_dev_err(dd, "attempt to set invalid LED override\n");
	return ret < 0 ? ret : count;
}
开发者ID:303750856，项目名称:linux-3.1，代码行数:14，代码来源:qib_sysfs.c


示例7: flash_read

static ssize_t flash_read(struct file *file, char __user *buf,
			  size_t count, loff_t *ppos)
{
	struct qib_devdata *dd;
	ssize_t ret;
	loff_t pos;
	char *tmp;

	pos = *ppos;

	if (pos < 0) {
		ret = -EINVAL;
		goto bail;
	}

	if (pos >= sizeof(struct qib_flash)) {
		ret = 0;
		goto bail;
	}

	if (count > sizeof(struct qib_flash) - pos)
		count = sizeof(struct qib_flash) - pos;

	tmp = kmalloc(count, GFP_KERNEL);
	if (!tmp) {
		ret = -ENOMEM;
		goto bail;
	}

	dd = private2dd(file);
	if (qib_eeprom_read(dd, pos, tmp, count)) {
		qib_dev_err(dd, "failed to read from flash\n");
		ret = -ENXIO;
		goto bail_tmp;
	}

	if (copy_to_user(buf, tmp, count)) {
		ret = -EFAULT;
		goto bail_tmp;
	}

	*ppos = pos + count;
	ret = count;

bail_tmp:
	kfree(tmp);

bail:
	return ret;
}
开发者ID:Tyler-D，项目名称:RXE，代码行数:50，代码来源:qib_fs.c


示例8: eeprom_write_with_enable

/*
 * Actually update the eeprom, first doing write enable if
 * needed, then restoring write enable state.
 * Must be called with eep_lock held
 */
static int eeprom_write_with_enable(struct qib_devdata *dd, u8 offset,
		     const void *buf, int len)
{
	int ret, pwen;

	pwen = dd->f_eeprom_wen(dd, 1);
	ret = qib_twsi_reset(dd);
	if (ret)
		qib_dev_err(dd, "EEPROM Reset for write failed\n");
	else
		ret = qib_twsi_blk_wr(dd, dd->twsi_eeprom_dev,
				      offset, buf, len);
	dd->f_eeprom_wen(dd, pwen);
	return ret;
}
开发者ID:0xroot，项目名称:Blackphone-BP1-Kernel，代码行数:20，代码来源:qib_eeprom.c


示例9: qib_msix_setup

static void qib_msix_setup(struct qib_devdata *dd, int pos, u32 *msixcnt,
			   struct qib_msix_entry *qib_msix_entry)
{
	int ret;
	int nvec = *msixcnt;
	struct msix_entry *msix_entry;
	int i;

	ret = pci_msix_vec_count(dd->pcidev);
	if (ret < 0)
		goto do_intx;

	nvec = min(nvec, ret);

	/* We can't pass qib_msix_entry array to qib_msix_setup
	 * so use a dummy msix_entry array and copy the allocated
	 * irq back to the qib_msix_entry array. */
	msix_entry = kcalloc(nvec, sizeof(*msix_entry), GFP_KERNEL);
	if (!msix_entry)
		goto do_intx;

	for (i = 0; i < nvec; i++)
		msix_entry[i] = qib_msix_entry[i].msix;

	ret = pci_enable_msix_range(dd->pcidev, msix_entry, 1, nvec);
	if (ret < 0)
		goto free_msix_entry;
	else
		nvec = ret;

	for (i = 0; i < nvec; i++)
		qib_msix_entry[i].msix = msix_entry[i];

	kfree(msix_entry);
	*msixcnt = nvec;
	return;

free_msix_entry:
	kfree(msix_entry);

do_intx:
	qib_dev_err(
		dd,
		"pci_enable_msix_range %d vectors failed: %d, falling back to INTx\n",
		nvec, ret);
	*msixcnt = 0;
	qib_enable_intx(dd->pcidev);
}
开发者ID:AshishNamdev，项目名称:linux，代码行数:48，代码来源:qib_pcie.c


示例10: store_led_override

static ssize_t store_led_override(struct qib_pportdata *ppd, const char *buf,
				  size_t count)
{
	struct qib_devdata *dd = ppd->dd;
	int ret;
	u16 val;

	ret = kstrtou16(buf, 0, &val);
	if (ret) {
		qib_dev_err(dd, "attempt to set invalid LED override\n");
		return ret;
	}

	qib_set_led_override(ppd, val);
	return count;
}
开发者ID:03199618，项目名称:linux，代码行数:16，代码来源:qib_sysfs.c


示例11: flash_write

static ssize_t flash_write(struct file *file, const char __user *buf,
			   size_t count, loff_t *ppos)
{
	struct qib_devdata *dd;
	ssize_t ret;
	loff_t pos;
	char *tmp;

	pos = *ppos;

	if (pos != 0) {
		ret = -EINVAL;
		goto bail;
	}

	if (count != sizeof(struct qib_flash)) {
		ret = -EINVAL;
		goto bail;
	}

	tmp = kmalloc(count, GFP_KERNEL);
	if (!tmp) {
		ret = -ENOMEM;
		goto bail;
	}

	if (copy_from_user(tmp, buf, count)) {
		ret = -EFAULT;
		goto bail_tmp;
	}

	dd = private2dd(file);
	if (qib_eeprom_write(dd, pos, tmp, count)) {
		ret = -ENXIO;
		qib_dev_err(dd, "failed to write to flash\n");
		goto bail_tmp;
	}

	*ppos = pos + count;
	ret = count;

bail_tmp:
	kfree(tmp);

bail:
	return ret;
}
开发者ID:Tyler-D，项目名称:RXE，代码行数:47，代码来源:qib_fs.c


示例12: qib_msix_setup

static void qib_msix_setup(struct qib_devdata *dd, int pos, u32 *msixcnt,
			   struct qib_msix_entry *qib_msix_entry)
{
	int ret;
	u32 tabsize = 0;
	u16 msix_flags;
	struct msix_entry *msix_entry;
	int i;

	/* We can't pass qib_msix_entry array to qib_msix_setup
	 * so use a dummy msix_entry array and copy the allocated
	 * irq back to the qib_msix_entry array. */
	msix_entry = kmalloc(*msixcnt * sizeof(*msix_entry), GFP_KERNEL);
	if (!msix_entry) {
		ret = -ENOMEM;
		goto do_intx;
	}
	for (i = 0; i < *msixcnt; i++)
		msix_entry[i] = qib_msix_entry[i].msix;

	pci_read_config_word(dd->pcidev, pos + PCI_MSIX_FLAGS, &msix_flags);
	tabsize = 1 + (msix_flags & PCI_MSIX_FLAGS_QSIZE);
	if (tabsize > *msixcnt)
		tabsize = *msixcnt;
	ret = pci_enable_msix(dd->pcidev, msix_entry, tabsize);
	if (ret > 0) {
		tabsize = ret;
		ret = pci_enable_msix(dd->pcidev, msix_entry, tabsize);
	}
do_intx:
	if (ret) {
		qib_dev_err(dd,
			"pci_enable_msix %d vectors failed: %d, falling back to INTx\n",
			tabsize, ret);
		tabsize = 0;
	}
	for (i = 0; i < tabsize; i++)
		qib_msix_entry[i].msix = msix_entry[i];
	kfree(msix_entry);
	*msixcnt = tabsize;

	if (ret)
		qib_enable_intx(dd->pcidev);

}
开发者ID:03199618，项目名称:linux，代码行数:45，代码来源:qib_pcie.c


示例13: qib_resync_ibepb

static int qib_resync_ibepb(struct qib_devdata *dd)
{
	int ret, pat, tries, chn;
	u32 loc;

	ret = -1;
	chn = 0;
	for (tries = 0; tries < (4 * IBSD_RESYNC_TRIES); ++tries) {
		loc = IB_PGUDP(chn);
		ret = qib_sd7220_reg_mod(dd, IB_7220_SERDES, loc, 0, 0);
		if (ret < 0) {
			qib_dev_err(dd, "Failed read in resync\n");
			continue;
		}
		if (ret != 0xF0 && ret != 0x55 && tries == 0)
			qib_dev_err(dd, "unexpected pattern in resync\n");
		pat = ret ^ 0xA5; /* alternate F0 and 55 */
		ret = qib_sd7220_reg_mod(dd, IB_7220_SERDES, loc, pat, 0xFF);
		if (ret < 0) {
			qib_dev_err(dd, "Failed write in resync\n");
			continue;
		}
		ret = qib_sd7220_reg_mod(dd, IB_7220_SERDES, loc, 0, 0);
		if (ret < 0) {
			qib_dev_err(dd, "Failed re-read in resync\n");
			continue;
		}
		if (ret != pat) {
			qib_dev_err(dd, "Failed compare1 in resync\n");
			continue;
		}
		loc = IB_CMUDONE(chn);
		ret = qib_sd7220_reg_mod(dd, IB_7220_SERDES, loc, 0, 0);
		if (ret < 0) {
			qib_dev_err(dd, "Failed CMUDONE rd in resync\n");
			continue;
		}
		if ((ret & 0x70) != ((chn << 4) | 0x40)) {
			qib_dev_err(dd, "Bad CMUDONE value %02X, chn %d\n",
				    ret, chn);
			continue;
		}
		if (++chn == 4)
			break;  /* Success */
	}
	return (ret > 0) ? 0 : ret;
}
开发者ID:Jubei-Mitsuyoshi，项目名称:sprezzos-world，代码行数:47，代码来源:qib_sd7220.c


示例14: qib_eeprom_read

/**
 * qib_eeprom_read - receives bytes from the eeprom via I2C
 * @dd: the qlogic_ib device
 * @eeprom_offset: address to read from
 * @buffer: where to store result
 * @len: number of bytes to receive
 */
int qib_eeprom_read(struct qib_devdata *dd, u8 eeprom_offset,
		    void *buff, int len)
{
	int ret;

	ret = mutex_lock_interruptible(&dd->eep_lock);
	if (!ret) {
		ret = qib_twsi_reset(dd);
		if (ret)
			qib_dev_err(dd, "EEPROM Reset for read failed\n");
		else
			ret = qib_twsi_blk_rd(dd, dd->twsi_eeprom_dev,
					      eeprom_offset, buff, len);
		mutex_unlock(&dd->eep_lock);
	}

	return ret;
}
开发者ID:0xroot，项目名称:Blackphone-BP1-Kernel，代码行数:25，代码来源:qib_eeprom.c


示例15: qib_reinit_intr

int qib_reinit_intr(struct qib_devdata *dd)
{
	int pos;
	u16 control;
	int ret = 0;

	/*                                          */
	if (!dd->msi_lo)
		goto bail;

	pos = pci_find_capability(dd->pcidev, PCI_CAP_ID_MSI);
	if (!pos) {
		qib_dev_err(dd, "Can't find MSI capability, "
			    "can't restore MSI settings\n");
		ret = 0;
		/*                                    */
		goto bail;
	}
	pci_write_config_dword(dd->pcidev, pos + PCI_MSI_ADDRESS_LO,
			       dd->msi_lo);
	pci_write_config_dword(dd->pcidev, pos + PCI_MSI_ADDRESS_HI,
			       dd->msi_hi);
	pci_read_config_word(dd->pcidev, pos + PCI_MSI_FLAGS, &control);
	if (!(control & PCI_MSI_FLAGS_ENABLE)) {
		control |= PCI_MSI_FLAGS_ENABLE;
		pci_write_config_word(dd->pcidev, pos + PCI_MSI_FLAGS,
				      control);
	}
	/*                                    */
	pci_write_config_word(dd->pcidev, pos +
			      ((control & PCI_MSI_FLAGS_64BIT) ? 12 : 8),
			      dd->msi_data);
	ret = 1;
bail:
	if (!ret && (dd->flags & QIB_HAS_INTX)) {
		qib_enable_intx(dd->pcidev);
		ret = 1;
	}

	/*                                      */
	pci_set_master(dd->pcidev);

	return ret;
}
开发者ID:romanbb，项目名称:android_kernel_lge_d851，代码行数:44，代码来源:qib_pcie.c


示例16: qib_reinit_intr

/*
 * Setup pcie interrupt stuff again after a reset.  I'd like to just call
 * pci_enable_msi() again for msi, but when I do that,
 * the MSI enable bit doesn't get set in the command word, and
 * we switch to to a different interrupt vector, which is confusing,
 * so I instead just do it all inline.  Perhaps somehow can tie this
 * into the PCIe hotplug support at some point
 */
int qib_reinit_intr(struct qib_devdata *dd)
{
	int pos;
	u16 control;
	int ret = 0;

	/* If we aren't using MSI, don't restore it */
	if (!dd->msi_lo)
		goto bail;

	pos = dd->pcidev->msi_cap;
	if (!pos) {
		qib_dev_err(dd,
			"Can't find MSI capability, can't restore MSI settings\n");
		ret = 0;
		/* nothing special for MSIx, just MSI */
		goto bail;
	}
	pci_write_config_dword(dd->pcidev, pos + PCI_MSI_ADDRESS_LO,
			       dd->msi_lo);
	pci_write_config_dword(dd->pcidev, pos + PCI_MSI_ADDRESS_HI,
			       dd->msi_hi);
	pci_read_config_word(dd->pcidev, pos + PCI_MSI_FLAGS, &control);
	if (!(control & PCI_MSI_FLAGS_ENABLE)) {
		control |= PCI_MSI_FLAGS_ENABLE;
		pci_write_config_word(dd->pcidev, pos + PCI_MSI_FLAGS,
				      control);
	}
	/* now rewrite the data (vector) info */
	pci_write_config_word(dd->pcidev, pos +
			      ((control & PCI_MSI_FLAGS_64BIT) ? 12 : 8),
			      dd->msi_data);
	ret = 1;
bail:
	if (!ret && (dd->flags & QIB_HAS_INTX)) {
		qib_enable_intx(dd);
		ret = 1;
	}

	/* and now set the pci master bit again */
	pci_set_master(dd->pcidev);

	return ret;
}
开发者ID:mkrufky，项目名称:linux，代码行数:52，代码来源:qib_pcie.c


示例17: qib_allocate_irqs

static int qib_allocate_irqs(struct qib_devdata *dd, u32 maxvec)
{
	unsigned int flags = PCI_IRQ_LEGACY;

	/* Check our capabilities */
	if (dd->pcidev->msix_cap) {
		flags |= PCI_IRQ_MSIX;
	} else {
		if (dd->pcidev->msi_cap) {
			flags |= PCI_IRQ_MSI;
			/* Get msi_lo and msi_hi */
			qib_msi_setup(dd, dd->pcidev->msi_cap);
		}
	}

	if (!(flags & (PCI_IRQ_MSIX | PCI_IRQ_MSI)))
		qib_dev_err(dd, "No PCI MSI or MSIx capability!\n");

	return pci_alloc_irq_vectors(dd->pcidev, 1, maxvec, flags);
}
开发者ID:mkrufky，项目名称:linux，代码行数:20，代码来源:qib_pcie.c


示例18: store_hrtbt_enb

static ssize_t store_hrtbt_enb(struct qib_pportdata *ppd, const char *buf,
			       size_t count)
{
	struct qib_devdata *dd = ppd->dd;
	int ret;
	u16 val;

	ret = qib_parse_ushort(buf, &val);

	/*
	 * Set the "intentional" heartbeat enable per either of
	 * "Enable" and "Auto", as these are normally set together.
	 * This bit is consulted when leaving loopback mode,
	 * because entering loopback mode overrides it and automatically
	 * disables heartbeat.
	 */
	if (ret >= 0)
		ret = dd->f_set_ib_cfg(ppd, QIB_IB_CFG_HRTBT, val);
	if (ret < 0)
		qib_dev_err(dd, "attempt to set invalid Heartbeat enable\n");
	return ret < 0 ? ret : count;
}
开发者ID:303750856，项目名称:linux-3.1，代码行数:22，代码来源:qib_sysfs.c


示例19: qib_sd7220_clr_ibpar

void qib_sd7220_clr_ibpar(struct qib_devdata *dd)
{
	int ret;

	/* clear, then re-enable parity errs */
	ret = qib_sd7220_reg_mod(dd, IB_7220_SERDES, IB_MPREG6,
		UC_PAR_CLR_D, UC_PAR_CLR_M);
	if (ret < 0) {
		qib_dev_err(dd, "Failed clearing IBSerDes Parity err\n");
		goto bail;
	}
	ret = qib_sd7220_reg_mod(dd, IB_7220_SERDES, IB_MPREG6, 0,
		UC_PAR_CLR_M);

	qib_read_kreg32(dd, kr_scratch);
	udelay(4);
	qib_write_kreg(dd, kr_hwerrclear,
		QLOGIC_IB_HWE_IB_UC_MEMORYPARITYERR);
	qib_read_kreg32(dd, kr_scratch);
bail:
	return;
}
开发者ID:Jubei-Mitsuyoshi，项目名称:sprezzos-world，代码行数:22，代码来源:qib_sd7220.c


示例20: qib_msi_setup

static int qib_msi_setup(struct qib_devdata *dd, int pos)
{
	struct pci_dev *pdev = dd->pcidev;
	u16 control;
	int ret;

	ret = pci_enable_msi(pdev);
	if (ret)
		qib_dev_err(dd, "pci_enable_msi failed: %d, "
			    "interrupts may not work\n", ret);
	/*                                                  */

	pci_read_config_dword(pdev, pos + PCI_MSI_ADDRESS_LO,
			      &dd->msi_lo);
	pci_read_config_dword(pdev, pos + PCI_MSI_ADDRESS_HI,
			      &dd->msi_hi);
	pci_read_config_word(pdev, pos + PCI_MSI_FLAGS, &control);
	/*                                 */
	pci_read_config_word(pdev, pos + ((control & PCI_MSI_FLAGS_64BIT)
				    ? 12 : 8),
			     &dd->msi_data);
	return ret;
}
开发者ID:romanbb，项目名称:android_kernel_lge_d851，代码行数:23，代码来源:qib_pcie.c



注：本文中的qib_dev_err函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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