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authorThomas Klein <osstklei@de.ibm.com>2007-04-26 13:56:43 +0400
committerJeff Garzik <jeff@garzik.org>2007-04-28 19:01:06 +0400
commit1211bb6dcd935c48e864d4eecbf8a684e982419a (patch)
tree83b79afed772ecde9399513deb9cf4ab14831411 /drivers/net/ehea
parentd1dea38d54311f6b3dd37ce485e794bd133e3593 (diff)
downloadlinux-1211bb6dcd935c48e864d4eecbf8a684e982419a.tar.xz
ehea: fix for dlpar support
Certain resources may only be allocated when first logical port is available, and must be removed when last logical port has been removed. Signed-off-by: Thomas Klein <tklein@de.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/ehea')
-rw-r--r--drivers/net/ehea/ehea.h2
-rw-r--r--drivers/net/ehea/ehea_main.c67
2 files changed, 46 insertions, 23 deletions
diff --git a/drivers/net/ehea/ehea.h b/drivers/net/ehea/ehea.h
index 136a6c19e259..602872dbe15f 100644
--- a/drivers/net/ehea/ehea.h
+++ b/drivers/net/ehea/ehea.h
@@ -39,7 +39,7 @@
#include <asm/io.h>
#define DRV_NAME "ehea"
-#define DRV_VERSION "EHEA_0057"
+#define DRV_VERSION "EHEA_0058"
#define EHEA_MSG_DEFAULT (NETIF_MSG_LINK | NETIF_MSG_TIMER \
| NETIF_MSG_RX_ERR | NETIF_MSG_TX_ERR)
diff --git a/drivers/net/ehea/ehea_main.c b/drivers/net/ehea/ehea_main.c
index 368f8e3eb4a0..c7a5614e66c0 100644
--- a/drivers/net/ehea/ehea_main.c
+++ b/drivers/net/ehea/ehea_main.c
@@ -2133,6 +2133,28 @@ static int ehea_clean_all_portres(struct ehea_port *port)
return ret;
}
+static void ehea_remove_adapter_mr (struct ehea_adapter *adapter)
+{
+ int i;
+
+ for (i=0; i < EHEA_MAX_PORTS; i++)
+ if (adapter->port[i])
+ return;
+
+ ehea_rem_mr(&adapter->mr);
+}
+
+static int ehea_add_adapter_mr (struct ehea_adapter *adapter)
+{
+ int i;
+
+ for (i=0; i < EHEA_MAX_PORTS; i++)
+ if (adapter->port[i])
+ return 0;
+
+ return ehea_reg_kernel_mr(adapter, &adapter->mr);
+}
+
static int ehea_up(struct net_device *dev)
{
int ret, i;
@@ -2583,7 +2605,6 @@ static int ehea_setup_ports(struct ehea_adapter *adapter)
struct device_node *eth_dn = NULL;
u32 *dn_log_port_id;
- int port_setup_ok = 0;
int i = 0;
lhea_dn = adapter->ebus_dev->ofdev.node;
@@ -2597,6 +2618,12 @@ static int ehea_setup_ports(struct ehea_adapter *adapter)
continue;
}
+ if (ehea_add_adapter_mr(adapter)) {
+ ehea_error("creating MR failed");
+ of_node_put(eth_dn);
+ return -EIO;
+ }
+
adapter->port[i] = ehea_setup_single_port(adapter,
*dn_log_port_id,
eth_dn);
@@ -2604,18 +2631,13 @@ static int ehea_setup_ports(struct ehea_adapter *adapter)
ehea_info("%s -> logical port id #%d",
adapter->port[i]->netdev->name,
*dn_log_port_id);
+ else
+ ehea_remove_adapter_mr(adapter);
+
i++;
};
- /* Check for succesfully set up ports */
- for (i = 0; i < EHEA_MAX_PORTS; i++)
- if (adapter->port[i])
- port_setup_ok++;
-
- if (port_setup_ok)
- return 0; /* At least some ports are setup correctly */
-
- return -EINVAL;
+ return 0;
}
static struct device_node *ehea_get_eth_dn(struct ehea_adapter *adapter,
@@ -2667,6 +2689,11 @@ static ssize_t ehea_probe_port(struct device *dev,
return -EINVAL;
}
+ if (ehea_add_adapter_mr(adapter)) {
+ ehea_error("creating MR failed");
+ return -EIO;
+ }
+
port = ehea_setup_single_port(adapter, logical_port_id, eth_dn);
of_node_put(eth_dn);
@@ -2680,8 +2707,10 @@ static ssize_t ehea_probe_port(struct device *dev,
ehea_info("added %s (logical port id=%d)", port->netdev->name,
logical_port_id);
- } else
+ } else {
+ ehea_remove_adapter_mr(adapter);
return -EIO;
+ }
return (ssize_t) count;
}
@@ -2716,6 +2745,8 @@ static ssize_t ehea_remove_port(struct device *dev,
return -EINVAL;
}
+ ehea_remove_adapter_mr(adapter);
+
return (ssize_t) count;
}
@@ -2776,18 +2807,13 @@ static int __devinit ehea_probe_adapter(struct ibmebus_dev *dev,
dev->ofdev.dev.driver_data = adapter;
- ret = ehea_reg_kernel_mr(adapter, &adapter->mr);
- if (ret) {
- dev_err(&dev->ofdev.dev, "reg_mr_adapter failed\n");
- goto out_free_ad;
- }
/* initialize adapter and ports */
/* get adapter properties */
ret = ehea_sense_adapter_attr(adapter);
if (ret) {
dev_err(&dev->ofdev.dev, "sense_adapter_attr failed: %d", ret);
- goto out_free_res;
+ goto out_free_ad;
}
adapter->neq = ehea_create_eq(adapter,
@@ -2795,7 +2821,7 @@ static int __devinit ehea_probe_adapter(struct ibmebus_dev *dev,
if (!adapter->neq) {
ret = -EIO;
dev_err(&dev->ofdev.dev, "NEQ creation failed");
- goto out_free_res;
+ goto out_free_ad;
}
tasklet_init(&adapter->neq_tasklet, ehea_neq_tasklet,
@@ -2840,9 +2866,6 @@ out_free_irq:
out_kill_eq:
ehea_destroy_eq(adapter->neq);
-out_free_res:
- ehea_rem_mr(&adapter->mr);
-
out_free_ad:
kfree(adapter);
out:
@@ -2868,7 +2891,7 @@ static int __devexit ehea_remove(struct ibmebus_dev *dev)
tasklet_kill(&adapter->neq_tasklet);
ehea_destroy_eq(adapter->neq);
- ehea_rem_mr(&adapter->mr);
+ ehea_remove_adapter_mr(adapter);
kfree(adapter);
return 0;
}