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authorDhananjay Phadke <dhananjay@netxen.com>2009-08-13 07:03:01 (GMT)
committerDavid S. Miller <davem@davemloft.net>2009-08-13 23:33:04 (GMT)
commit232e7d68d50c9ac3a55d716e5ae215ecd1e043b9 (patch)
tree2367d09f6c2a6f9edc7f674f27dfb987968083fa /drivers/net/netxen
parente424fa9d6a0add1a9b812b07e3607daaa5b9e53d (diff)
downloadlinux-fsl-qoriq-232e7d68d50c9ac3a55d716e5ae215ecd1e043b9.tar.xz
netxen: free napi resources during detach
o Defer napi resouce allocation to device attach. o Free napi resources and delete napi during detach. This ensures right behavior across firmware reset. Signed-off-by: Dhananjay Phadke <dhananjay@netxen.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/netxen')
-rw-r--r--drivers/net/netxen/netxen_nic_init.c7
-rw-r--r--drivers/net/netxen/netxen_nic_main.c32
2 files changed, 24 insertions, 15 deletions
diff --git a/drivers/net/netxen/netxen_nic_init.c b/drivers/net/netxen/netxen_nic_init.c
index 7acf204..5d3343e 100644
--- a/drivers/net/netxen/netxen_nic_init.c
+++ b/drivers/net/netxen/netxen_nic_init.c
@@ -184,13 +184,6 @@ void netxen_free_sw_resources(struct netxen_adapter *adapter)
kfree(recv_ctx->rds_rings);
skip_rds:
- if (recv_ctx->sds_rings == NULL)
- goto skip_sds;
-
- for(ring = 0; ring < adapter->max_sds_rings; ring++)
- recv_ctx->sds_rings[ring].consumer = 0;
-
-skip_sds:
if (adapter->tx_ring == NULL)
return;
diff --git a/drivers/net/netxen/netxen_nic_main.c b/drivers/net/netxen/netxen_nic_main.c
index d24e1cb..28f270f 100644
--- a/drivers/net/netxen/netxen_nic_main.c
+++ b/drivers/net/netxen/netxen_nic_main.c
@@ -167,6 +167,8 @@ netxen_free_sds_rings(struct netxen_recv_context *recv_ctx)
{
if (recv_ctx->sds_rings != NULL)
kfree(recv_ctx->sds_rings);
+
+ recv_ctx->sds_rings = NULL;
}
static int
@@ -189,6 +191,21 @@ netxen_napi_add(struct netxen_adapter *adapter, struct net_device *netdev)
}
static void
+netxen_napi_del(struct netxen_adapter *adapter)
+{
+ int ring;
+ struct nx_host_sds_ring *sds_ring;
+ struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
+
+ for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+ sds_ring = &recv_ctx->sds_rings[ring];
+ netif_napi_del(&sds_ring->napi);
+ }
+
+ netxen_free_sds_rings(&adapter->recv_ctx);
+}
+
+static void
netxen_napi_enable(struct netxen_adapter *adapter)
{
int ring;
@@ -889,10 +906,12 @@ netxen_nic_attach(struct netxen_adapter *adapter)
struct nx_host_tx_ring *tx_ring;
err = netxen_init_firmware(adapter);
- if (err != 0) {
- printk(KERN_ERR "Failed to init firmware\n");
- return -EIO;
- }
+ if (err)
+ return err;
+
+ err = netxen_napi_add(adapter, netdev);
+ if (err)
+ return err;
if (adapter->fw_major < 4)
adapter->max_rds_rings = 3;
@@ -956,6 +975,7 @@ netxen_nic_detach(struct netxen_adapter *adapter)
netxen_free_hw_resources(adapter);
netxen_release_rx_buffers(adapter);
netxen_nic_free_irq(adapter);
+ netxen_napi_del(adapter);
netxen_free_sw_resources(adapter);
adapter->is_up = 0;
@@ -1100,9 +1120,6 @@ netxen_nic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
netdev->irq = adapter->msix_entries[0].vector;
- if (netxen_napi_add(adapter, netdev))
- goto err_out_disable_msi;
-
init_timer(&adapter->watchdog_timer);
adapter->watchdog_timer.function = &netxen_watchdog;
adapter->watchdog_timer.data = (unsigned long)adapter;
@@ -1183,7 +1200,6 @@ static void __devexit netxen_nic_remove(struct pci_dev *pdev)
netxen_free_adapter_offload(adapter);
netxen_teardown_intr(adapter);
- netxen_free_sds_rings(&adapter->recv_ctx);
netxen_cleanup_pci_map(adapter);