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authorRajesh Borundia <rajesh.borundia@qlogic.com>2010-11-23 03:08:27 +0000
committerDavid S. Miller <davem@davemloft.net>2010-11-28 10:47:16 -0800
commit5a6f95e653adf52ee1ff09cd5e66c2640c65ff66 (patch)
treee70e178fdd571f65d8d457d9c701facc16610c02 /drivers/net/netxen/netxen_nic_main.c
parentb0044bcfa95ddf2e317863fb29121c284b6725ca (diff)
downloadop-kernel-dev-5a6f95e653adf52ee1ff09cd5e66c2640c65ff66.zip
op-kernel-dev-5a6f95e653adf52ee1ff09cd5e66c2640c65ff66.tar.gz
netxen: avoid using reset_devices as it may become obsolete
In kdump environment do not depend on reset_devices parameter to reset the device as the parameter may become obsolete. Instead use an adapter specific mechanism to determine if the device needs a reset. Driver maintains a count of number of pci functions probed and decrements the count when remove handler of that pci function is called. If the first probe, probe of function 0, detects the count as non zero then reset the device. Signed-off-by: Rajesh Borundia <rajesh.borundia@qlogic.com> Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/netxen/netxen_nic_main.c')
-rw-r--r--drivers/net/netxen/netxen_nic_main.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c
index e1d30d7..ceeaac9 100644
--- a/drivers/net/netxen/netxen_nic_main.c
+++ b/drivers/net/netxen/netxen_nic_main.c
@@ -1277,6 +1277,7 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
int i = 0, err;
int pci_func_id = PCI_FUNC(pdev->devfn);
uint8_t revision_id;
+ u32 val;
if (pdev->revision >= NX_P3_A0 && pdev->revision <= NX_P3_B1) {
pr_warning("%s: chip revisions between 0x%x-0x%x "
@@ -1352,8 +1353,9 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
break;
}
- if (reset_devices) {
- if (adapter->portnum == 0) {
+ if (adapter->portnum == 0) {
+ val = NXRD32(adapter, NX_CRB_DEV_REF_COUNT);
+ if (val != 0xffffffff && val != 0) {
NXWR32(adapter, NX_CRB_DEV_REF_COUNT, 0);
adapter->need_fw_reset = 1;
}
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