On Tuesday, October 7, 2008 10:34 am Tomasz Czernecki wrote:
> Hi Jesse,
>
> I applied the commands you specified, applied the
> "pci-use-find-ext-cap-3.patch", and started compiling, but then
> encountered an error. The following is the last half-screen or so of
> the output. Should I have been using the 1115-001.bin patch instead?
>
> AS arch/x86/lib/putuser.o
> AS arch/x86/lib/semaphore_32.o
> CC arch/x86/lib/string_32.o
> CC arch/x86/lib/strstr_32.o
> AS arch/x86/lib/thunk_32.o
> CC arch/x86/lib/usercopy_32.o
> AR arch/x86/lib/lib.a
> LD vmlinux.o
> MODPOST vmlinux.o
> WARNING: modpost: Found 2 section mismatch(es).
> To see full details build your kernel with:
> 'make CONFIG_DEBUG_SECTION_MISMATCH=y'
> GEN .version
> CHK include/linux/compile.h
> UPD include/linux/compile.h
> CC init/version.o
> LD init/built-in.o
> LD .tmp_vmlinux1
> drivers/built-in.o:(__ksymtab_gpl+0xa0): undefined reference to
> `pci_find_aer_capability'
> make: *** [.tmp_vmlinux1] Error 1
> suselinux103x86:/usr/src/pci-2.6 #
Ah I missed that there was an EXPORT_SYMBOL of this function in aerdrv_core.c
(this is why EXPORT_SYMBOL belongs next to the function exported!). Updated
patch attached, but it would be fastest for you to just hand edit your
partially built tree, removing the
EXPORT_SYMBOL_GPL(pci_find_aer_capability); line at the bottom of
aerdrv_core.c
Thanks,
Jesse
diff --git a/drivers/pci/pcie/aer/aerdrv.c b/drivers/pci/pcie/aer/aerdrv.c
index 77036f4..e390707 100644
--- a/drivers/pci/pcie/aer/aerdrv.c
+++ b/drivers/pci/pcie/aer/aerdrv.c
@@ -105,7 +105,7 @@ static irqreturn_t aer_irq(int irq, void *context)
unsigned long flags;
int pos;
- pos = pci_find_aer_capability(pdev->port);
+ pos = pci_find_ext_capability(pdev->port, PCI_EXT_CAP_ID_ERR);
/*
* Must lock access to Root Error Status Reg, Root Error ID Reg,
* and Root error producer/consumer index
@@ -252,7 +252,7 @@ static pci_ers_result_t aer_root_reset(struct pci_dev *dev)
u32 status;
int pos;
- pos = pci_find_aer_capability(dev);
+ pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
/* Disable Root's interrupt in response to error messages */
pci_write_config_dword(dev, pos + PCI_ERR_ROOT_COMMAND, 0);
@@ -316,7 +316,7 @@ static void aer_error_resume(struct pci_dev *dev)
pci_write_config_word(dev, pos + PCI_EXP_DEVSTA, reg16);
/* Clean AER Root Error Status */
- pos = pci_find_aer_capability(dev);
+ pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_STATUS, &status);
pci_read_config_dword(dev, pos + PCI_ERR_UNCOR_SEVER, &mask);
if (dev->error_state == pci_channel_io_normal)
diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c
index 6f5244b..1ff21f6 100644
--- a/drivers/pci/pcie/aer/aerdrv_core.c
+++ b/drivers/pci/pcie/aer/aerdrv_core.c
@@ -28,35 +28,6 @@
static int forceload;
module_param(forceload, bool, 0);
-int pci_find_aer_capability(struct pci_dev *dev)
-{
- int pos;
- u32 reg32 = 0;
-
- /* Check if it's a pci-express device */
- pos = pci_find_capability(dev, PCI_CAP_ID_EXP);
- if (!pos)
- return 0;
-
- /* Check if it supports pci-express AER */
- pos = PCI_CFG_SPACE_SIZE;
- while (pos) {
- if (pci_read_config_dword(dev, pos, ®32))
- return 0;
-
- /* some broken boards return ~0 */
- if (reg32 == 0xffffffff)
- return 0;
-
- if (PCI_EXT_CAP_ID(reg32) == PCI_EXT_CAP_ID_ERR)
- break;
-
- pos = reg32 >> 20;
- }
-
- return pos;
-}
-
int pci_enable_pcie_error_reporting(struct pci_dev *dev)
{
u16 reg16 = 0;
@@ -66,6 +37,10 @@ int pci_enable_pcie_error_reporting(struct pci_dev *dev)
if (!pos)
return -EIO;
+ pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
+ if (!pos)
+ return -EIO;
+
pci_read_config_word(dev, pos+PCI_EXP_DEVCTL, ®16);
reg16 = reg16 |
PCI_EXP_DEVCTL_CERE |
@@ -101,7 +76,7 @@ int pci_cleanup_aer_uncorrect_error_status(struct pci_dev *dev)
int pos;
u32 status, mask;
- pos = pci_find_aer_capability(dev);
+ pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
if (!pos)
return -EIO;
@@ -122,7 +97,7 @@ int pci_cleanup_aer_correct_error_status(struct pci_dev *dev)
int pos;
u32 status;
- pos = pci_find_aer_capability(dev);
+ pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
if (!pos)
return -EIO;
@@ -501,7 +476,7 @@ static void handle_error_source(struct pcie_device * aerdev,
* Correctable error does not need software intevention.
* No need to go through error recovery process.
*/
- pos = pci_find_aer_capability(dev);
+ pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
if (pos)
pci_write_config_dword(dev, pos + PCI_ERR_COR_STATUS,
info.status);
@@ -541,7 +516,7 @@ void aer_enable_rootport(struct aer_rpc *rpc)
reg16 &= ~(SYSTEM_ERROR_INTR_ON_MESG_MASK);
pci_write_config_word(pdev, pos + PCI_EXP_RTCTL, reg16);
- aer_pos = pci_find_aer_capability(pdev);
+ aer_pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_ERR);
/* Clear error status */
pci_read_config_dword(pdev, aer_pos + PCI_ERR_ROOT_STATUS, ®32);
pci_write_config_dword(pdev, aer_pos + PCI_ERR_ROOT_STATUS, reg32);
@@ -578,7 +553,7 @@ static void disable_root_aer(struct aer_rpc *rpc)
u32 reg32;
int pos;
- pos = pci_find_aer_capability(pdev);
+ pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_ERR);
/* Disable Root's interrupt in response to error messages */
pci_write_config_dword(pdev, pos + PCI_ERR_ROOT_COMMAND, 0);
@@ -617,7 +592,7 @@ static int get_device_error_info(struct pci_dev *dev, struct aer_err_info *info)
{
int pos;
- pos = pci_find_aer_capability(dev);
+ pos = pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR);
/* The device might not support AER */
if (!pos)
@@ -754,7 +729,6 @@ int aer_init(struct pcie_device *dev)
return AER_SUCCESS;
}
-EXPORT_SYMBOL_GPL(pci_find_aer_capability);
EXPORT_SYMBOL_GPL(pci_enable_pcie_error_reporting);
EXPORT_SYMBOL_GPL(pci_disable_pcie_error_reporting);
EXPORT_SYMBOL_GPL(pci_cleanup_aer_uncorrect_error_status);
diff --git a/drivers/pci/pcie/portdrv_core.c b/drivers/pci/pcie/portdrv_core.c
index 18bb811..6cdd41f 100644
--- a/drivers/pci/pcie/portdrv_core.c
+++ b/drivers/pci/pcie/portdrv_core.c
@@ -196,23 +196,10 @@ static int get_port_device_capability(struct pci_dev *dev)
if (((reg16 >> 4) & PORT_TYPE_MASK) == PCIE_RC_PORT)
services |= PCIE_PORT_SERVICE_PME;
- pos = PCI_CFG_SPACE_SIZE;
- while (pos) {
- pci_read_config_dword(dev, pos, ®32);
- switch (reg32 & 0xffff) {
- case PCI_EXT_CAP_ID_ERR:
- services |= PCIE_PORT_SERVICE_AER;
- pos = reg32 >> 20;
- break;
- case PCI_EXT_CAP_ID_VC:
- services |= PCIE_PORT_SERVICE_VC;
- pos = reg32 >> 20;
- break;
- default:
- pos = 0;
- break;
- }
- }
+ if (pci_find_ext_capability(dev, PCI_EXT_CAP_ID_ERR))
+ services |= PCIE_PORT_SERVICE_AER;
+ if (pci_find_ext_capability(dev, PCI_EXT_CAP_ID_VC))
+ services |= PCIE_PORT_SERVICE_VC;
return services;
}
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 26afe44..28ea570 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -1567,9 +1567,8 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
goto probe_out;
}
- if (pci_find_aer_capability(pdev))
- if (pci_enable_pcie_error_reporting(pdev))
- goto probe_out;
+ /* This may fail but that's ok */
+ pci_enable_pcie_error_reporting(pdev);
host = scsi_host_alloc(sht, sizeof(scsi_qla_host_t));
if (host == NULL) {
diff --git a/include/linux/aer.h b/include/linux/aer.h
index f251814..a2383a7 100644
--- a/include/linux/aer.h
+++ b/include/linux/aer.h
@@ -18,10 +18,6 @@ static inline int pci_enable_pcie_error_reporting(struct pci_dev *dev)
{
return -EINVAL;
}
-static inline int pci_find_aer_capability(struct pci_dev *dev)
-{
- return 0;
-}
static inline int pci_disable_pcie_error_reporting(struct pci_dev *dev)
{
return -EINVAL;
