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cxgb3: Notify fatal errors 

Set up a notification mechanism to inform upper layer modules
(iWARP, iSCSI) of a chip reset due to an EEH event or a fatal error.

Signed-off-by: Divy Le Ray <divy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Divy Le Ray 2009-01-26 22:21:59 -08:00 committed by David S. Miller
parent 1373c0fdbc
commit cb0bc20595
3 changed files with 28 additions and 4 deletions
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13
drivers/net/cxgb3/cxgb3_main.c
View File

@ -2542,6 +2542,12 @@ static int t3_adapter_error(struct adapter *adapter, int reset)
{
int i, ret = 0;
if (is_offload(adapter) &&
test_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map)) {
cxgb3_err_notify(&adapter->tdev, OFFLOAD_STATUS_DOWN, 0);
offload_close(&adapter->tdev);
}
/* Stop all ports */
for_each_port(adapter, i) {
struct net_device *netdev = adapter->port[i];
@ -2550,10 +2556,6 @@ static int t3_adapter_error(struct adapter *adapter, int reset)
cxgb_close(netdev);
}
if (is_offload(adapter) &&
test_bit(OFFLOAD_DEVMAP_BIT, &adapter->open_device_map))
offload_close(&adapter->tdev);
/* Stop SGE timers */
t3_stop_sge_timers(adapter);
@ -2605,6 +2607,9 @@ static void t3_resume_ports(struct adapter *adapter)
}
}
}
if (is_offload(adapter) && !ofld_disable)
cxgb3_err_notify(&adapter->tdev, OFFLOAD_STATUS_UP, 0);
}
/*

12
drivers/net/cxgb3/cxgb3_offload.c
View File

@ -153,6 +153,18 @@ void cxgb3_remove_clients(struct t3cdev *tdev)
mutex_unlock(&cxgb3_db_lock);
}
void cxgb3_err_notify(struct t3cdev *tdev, u32 status, u32 error)
{
struct cxgb3_client *client;
mutex_lock(&cxgb3_db_lock);
list_for_each_entry(client, &client_list, client_list) {
if (client->err_handler)
client->err_handler(tdev, status, error);
}
mutex_unlock(&cxgb3_db_lock);
}
static struct net_device *get_iff_from_mac(struct adapter *adapter,
const unsigned char *mac,
unsigned int vlan)

7
drivers/net/cxgb3/cxgb3_offload.h
View File

@ -64,10 +64,16 @@ void cxgb3_register_client(struct cxgb3_client *client);
void cxgb3_unregister_client(struct cxgb3_client *client);
void cxgb3_add_clients(struct t3cdev *tdev);
void cxgb3_remove_clients(struct t3cdev *tdev);
void cxgb3_err_notify(struct t3cdev *tdev, u32 status, u32 error);
typedef int (*cxgb3_cpl_handler_func)(struct t3cdev *dev,
struct sk_buff *skb, void *ctx);
enum {
OFFLOAD_STATUS_UP,
OFFLOAD_STATUS_DOWN
};
struct cxgb3_client {
char *name;
void (*add) (struct t3cdev *);
@ -76,6 +82,7 @@ struct cxgb3_client {
int (*redirect)(void *ctx, struct dst_entry *old,
struct dst_entry *new, struct l2t_entry *l2t);
struct list_head client_list;
void (*err_handler)(struct t3cdev *tdev, u32 status, u32 error);
};
/*