mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-25 21:24:08 +08:00
netxen: support pci error handlers
o Support pci error detection and recovery. o Refactor suspend and resume code, to share with io_error_detected, and slot_reset callbacks o NX_NEED_AER device state added, to synchronize with firmware recovery. Signed-off-by: Amit Kumar Salecha <amit.salecha@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Amit Kumar Salecha
David S. Miller
parent
6a808c6c02
commit
e87ad55393
@ -969,7 +969,8 @@ enum {
|
||||
#define NX_DEV_READY 3
|
||||
#define NX_DEV_NEED_RESET 4
|
||||
#define NX_DEV_NEED_QUISCENT 5
|
||||
#define NX_DEV_FAILED 6
|
||||
#define NX_DEV_NEED_AER 6
|
||||
#define NX_DEV_FAILED 7
|
||||
|
||||
#define NX_RCODE_DRIVER_INFO 0x20000000
|
||||
#define NX_RCODE_DRIVER_CAN_RELOAD 0x40000000
|
||||
|
||||
@ -35,6 +35,7 @@
|
||||
#include <linux/ipv6.h>
|
||||
#include <linux/inetdevice.h>
|
||||
#include <linux/sysfs.h>
|
||||
#include <linux/aer.h>
|
||||
|
||||
MODULE_DESCRIPTION("QLogic/NetXen (1/10) GbE Converged Ethernet Driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
@ -84,6 +85,7 @@ static void netxen_remove_sysfs_entries(struct netxen_adapter *adapter);
|
||||
static void netxen_create_diag_entries(struct netxen_adapter *adapter);
|
||||
static void netxen_remove_diag_entries(struct netxen_adapter *adapter);
|
||||
|
||||
static int nx_dev_request_aer(struct netxen_adapter *adapter);
|
||||
static int nx_decr_dev_ref_cnt(struct netxen_adapter *adapter);
|
||||
static int netxen_can_start_firmware(struct netxen_adapter *adapter);
|
||||
|
||||
@ -1262,6 +1264,9 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
|
||||
if ((err = pci_request_regions(pdev, netxen_nic_driver_name)))
|
||||
goto err_out_disable_pdev;
|
||||
|
||||
if (NX_IS_REVISION_P3(pdev->revision))
|
||||
pci_enable_pcie_error_reporting(pdev);
|
||||
|
||||
pci_set_master(pdev);
|
||||
|
||||
netdev = alloc_etherdev(sizeof(struct netxen_adapter));
|
||||
@ -1409,17 +1414,19 @@ static void __devexit netxen_nic_remove(struct pci_dev *pdev)
|
||||
|
||||
netxen_release_firmware(adapter);
|
||||
|
||||
if (NX_IS_REVISION_P3(pdev->revision))
|
||||
pci_disable_pcie_error_reporting(pdev);
|
||||
|
||||
pci_release_regions(pdev);
|
||||
pci_disable_device(pdev);
|
||||
pci_set_drvdata(pdev, NULL);
|
||||
|
||||
free_netdev(netdev);
|
||||
}
|
||||
static int __netxen_nic_shutdown(struct pci_dev *pdev)
|
||||
|
||||
static void netxen_nic_detach_func(struct netxen_adapter *adapter)
|
||||
{
|
||||
struct netxen_adapter *adapter = pci_get_drvdata(pdev);
|
||||
struct net_device *netdev = adapter->netdev;
|
||||
int retval;
|
||||
|
||||
netif_device_detach(netdev);
|
||||
|
||||
@ -1438,43 +1445,9 @@ static int __netxen_nic_shutdown(struct pci_dev *pdev)
|
||||
nx_decr_dev_ref_cnt(adapter);
|
||||
|
||||
clear_bit(__NX_RESETTING, &adapter->state);
|
||||
|
||||
retval = pci_save_state(pdev);
|
||||
if (retval)
|
||||
return retval;
|
||||
|
||||
if (netxen_nic_wol_supported(adapter)) {
|
||||
pci_enable_wake(pdev, PCI_D3cold, 1);
|
||||
pci_enable_wake(pdev, PCI_D3hot, 1);
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
static void netxen_nic_shutdown(struct pci_dev *pdev)
|
||||
{
|
||||
if (__netxen_nic_shutdown(pdev))
|
||||
return;
|
||||
|
||||
pci_disable_device(pdev);
|
||||
}
|
||||
#ifdef CONFIG_PM
|
||||
static int
|
||||
netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
|
||||
{
|
||||
int retval;
|
||||
|
||||
retval = __netxen_nic_shutdown(pdev);
|
||||
if (retval)
|
||||
return retval;
|
||||
|
||||
pci_set_power_state(pdev, pci_choose_state(pdev, state));
|
||||
|
||||
pci_disable_device(pdev);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
netxen_nic_resume(struct pci_dev *pdev)
|
||||
static int netxen_nic_attach_func(struct pci_dev *pdev)
|
||||
{
|
||||
struct netxen_adapter *adapter = pci_get_drvdata(pdev);
|
||||
struct net_device *netdev = adapter->netdev;
|
||||
@ -1519,6 +1492,85 @@ err_out:
|
||||
nx_decr_dev_ref_cnt(adapter);
|
||||
return err;
|
||||
}
|
||||
|
||||
static pci_ers_result_t netxen_io_error_detected(struct pci_dev *pdev,
|
||||
pci_channel_state_t state)
|
||||
{
|
||||
struct netxen_adapter *adapter = pci_get_drvdata(pdev);
|
||||
|
||||
if (state == pci_channel_io_perm_failure)
|
||||
return PCI_ERS_RESULT_DISCONNECT;
|
||||
|
||||
if (nx_dev_request_aer(adapter))
|
||||
return PCI_ERS_RESULT_RECOVERED;
|
||||
|
||||
netxen_nic_detach_func(adapter);
|
||||
|
||||
pci_disable_device(pdev);
|
||||
|
||||
return PCI_ERS_RESULT_NEED_RESET;
|
||||
}
|
||||
|
||||
static pci_ers_result_t netxen_io_slot_reset(struct pci_dev *pdev)
|
||||
{
|
||||
int err = 0;
|
||||
|
||||
err = netxen_nic_attach_func(pdev);
|
||||
|
||||
return err ? PCI_ERS_RESULT_DISCONNECT : PCI_ERS_RESULT_RECOVERED;
|
||||
}
|
||||
|
||||
static void netxen_io_resume(struct pci_dev *pdev)
|
||||
{
|
||||
pci_cleanup_aer_uncorrect_error_status(pdev);
|
||||
}
|
||||
|
||||
static void netxen_nic_shutdown(struct pci_dev *pdev)
|
||||
{
|
||||
struct netxen_adapter *adapter = pci_get_drvdata(pdev);
|
||||
|
||||
netxen_nic_detach_func(adapter);
|
||||
|
||||
if (pci_save_state(pdev))
|
||||
return;
|
||||
|
||||
if (netxen_nic_wol_supported(adapter)) {
|
||||
pci_enable_wake(pdev, PCI_D3cold, 1);
|
||||
pci_enable_wake(pdev, PCI_D3hot, 1);
|
||||
}
|
||||
|
||||
pci_disable_device(pdev);
|
||||
}
|
||||
|
||||
#ifdef CONFIG_PM
|
||||
static int
|
||||
netxen_nic_suspend(struct pci_dev *pdev, pm_message_t state)
|
||||
{
|
||||
struct netxen_adapter *adapter = pci_get_drvdata(pdev);
|
||||
int retval;
|
||||
|
||||
netxen_nic_detach_func(adapter);
|
||||
|
||||
retval = pci_save_state(pdev);
|
||||
if (retval)
|
||||
return retval;
|
||||
|
||||
if (netxen_nic_wol_supported(adapter)) {
|
||||
pci_enable_wake(pdev, PCI_D3cold, 1);
|
||||
pci_enable_wake(pdev, PCI_D3hot, 1);
|
||||
}
|
||||
|
||||
pci_disable_device(pdev);
|
||||
pci_set_power_state(pdev, pci_choose_state(pdev, state));
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int
|
||||
netxen_nic_resume(struct pci_dev *pdev)
|
||||
{
|
||||
return netxen_nic_attach_func(pdev);
|
||||
}
|
||||
#endif
|
||||
|
||||
static int netxen_nic_open(struct net_device *netdev)
|
||||
@ -2110,20 +2162,49 @@ nx_decr_dev_ref_cnt(struct netxen_adapter *adapter)
|
||||
return count;
|
||||
}
|
||||
|
||||
static void
|
||||
nx_dev_request_reset(struct netxen_adapter *adapter)
|
||||
static int
|
||||
nx_dev_request_aer(struct netxen_adapter *adapter)
|
||||
{
|
||||
u32 state;
|
||||
int ret = -EINVAL;
|
||||
|
||||
if (netxen_api_lock(adapter))
|
||||
return;
|
||||
return ret;
|
||||
|
||||
state = NXRD32(adapter, NX_CRB_DEV_STATE);
|
||||
|
||||
if (state != NX_DEV_INITALIZING)
|
||||
NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
|
||||
if (state == NX_DEV_NEED_AER)
|
||||
ret = 0;
|
||||
else if (state == NX_DEV_READY) {
|
||||
NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_AER);
|
||||
ret = 0;
|
||||
}
|
||||
|
||||
netxen_api_unlock(adapter);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int
|
||||
nx_dev_request_reset(struct netxen_adapter *adapter)
|
||||
{
|
||||
u32 state;
|
||||
int ret = -EINVAL;
|
||||
|
||||
if (netxen_api_lock(adapter))
|
||||
return ret;
|
||||
|
||||
state = NXRD32(adapter, NX_CRB_DEV_STATE);
|
||||
|
||||
if (state == NX_DEV_NEED_RESET)
|
||||
ret = 0;
|
||||
else if (state != NX_DEV_INITALIZING && state != NX_DEV_NEED_AER) {
|
||||
NXWR32(adapter, NX_CRB_DEV_STATE, NX_DEV_NEED_RESET);
|
||||
ret = 0;
|
||||
}
|
||||
|
||||
netxen_api_unlock(adapter);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int
|
||||
@ -2275,18 +2356,28 @@ netxen_check_health(struct netxen_adapter *adapter)
|
||||
u32 state, heartbit;
|
||||
struct net_device *netdev = adapter->netdev;
|
||||
|
||||
state = NXRD32(adapter, NX_CRB_DEV_STATE);
|
||||
if (state == NX_DEV_NEED_AER)
|
||||
return 0;
|
||||
|
||||
if (netxen_nic_check_temp(adapter))
|
||||
goto detach;
|
||||
|
||||
if (adapter->need_fw_reset) {
|
||||
nx_dev_request_reset(adapter);
|
||||
if (nx_dev_request_reset(adapter))
|
||||
return 0;
|
||||
goto detach;
|
||||
}
|
||||
|
||||
state = NXRD32(adapter, NX_CRB_DEV_STATE);
|
||||
/* NX_DEV_NEED_RESET, this state can be marked in two cases
|
||||
* 1. Tx timeout 2. Fw hang
|
||||
* Send request to destroy context in case of tx timeout only
|
||||
* and doesn't required in case of Fw hang
|
||||
*/
|
||||
if (state == NX_DEV_NEED_RESET) {
|
||||
adapter->need_fw_reset = 1;
|
||||
goto detach;
|
||||
if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
|
||||
goto detach;
|
||||
}
|
||||
|
||||
if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
|
||||
@ -2296,12 +2387,17 @@ netxen_check_health(struct netxen_adapter *adapter)
|
||||
if (heartbit != adapter->heartbit) {
|
||||
adapter->heartbit = heartbit;
|
||||
adapter->fw_fail_cnt = 0;
|
||||
if (adapter->need_fw_reset)
|
||||
goto detach;
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (++adapter->fw_fail_cnt < FW_FAIL_THRESH)
|
||||
return 0;
|
||||
|
||||
if (nx_dev_request_reset(adapter))
|
||||
return 0;
|
||||
|
||||
clear_bit(__NX_FW_ATTACHED, &adapter->state);
|
||||
|
||||
dev_info(&netdev->dev, "firmware hang detected\n");
|
||||
@ -2731,6 +2827,12 @@ netxen_config_indev_addr(struct net_device *dev, unsigned long event)
|
||||
{ }
|
||||
#endif
|
||||
|
||||
static struct pci_error_handlers netxen_err_handler = {
|
||||
.error_detected = netxen_io_error_detected,
|
||||
.slot_reset = netxen_io_slot_reset,
|
||||
.resume = netxen_io_resume,
|
||||
};
|
||||
|
||||
static struct pci_driver netxen_driver = {
|
||||
.name = netxen_nic_driver_name,
|
||||
.id_table = netxen_pci_tbl,
|
||||
@ -2740,7 +2842,8 @@ static struct pci_driver netxen_driver = {
|
||||
.suspend = netxen_nic_suspend,
|
||||
.resume = netxen_nic_resume,
|
||||
#endif
|
||||
.shutdown = netxen_nic_shutdown
|
||||
.shutdown = netxen_nic_shutdown,
|
||||
.err_handler = &netxen_err_handler
|
||||
};
|
||||
|
||||
static int __init netxen_init_module(void)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user