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path: root/drivers/net/myri10ge/myri10ge.c
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Diffstat (limited to 'drivers/net/myri10ge/myri10ge.c')
-rw-r--r--drivers/net/myri10ge/myri10ge.c98
1 files changed, 54 insertions, 44 deletions
diff --git a/drivers/net/myri10ge/myri10ge.c b/drivers/net/myri10ge/myri10ge.c
index 28540265240..53325ba0a6a 100644
--- a/drivers/net/myri10ge/myri10ge.c
+++ b/drivers/net/myri10ge/myri10ge.c
@@ -721,12 +721,10 @@ static int myri10ge_reset(struct myri10ge_priv *mgp)
status |=
myri10ge_send_cmd(mgp, MXGEFW_CMD_GET_IRQ_ACK_OFFSET, &cmd, 0);
mgp->irq_claim = (__iomem __be32 *) (mgp->sram + cmd.data0);
- if (!mgp->msi_enabled) {
- status |= myri10ge_send_cmd
- (mgp, MXGEFW_CMD_GET_IRQ_DEASSERT_OFFSET, &cmd, 0);
- mgp->irq_deassert = (__iomem __be32 *) (mgp->sram + cmd.data0);
+ status |= myri10ge_send_cmd(mgp, MXGEFW_CMD_GET_IRQ_DEASSERT_OFFSET,
+ &cmd, 0);
+ mgp->irq_deassert = (__iomem __be32 *) (mgp->sram + cmd.data0);
- }
status |= myri10ge_send_cmd
(mgp, MXGEFW_CMD_GET_INTR_COAL_DELAY_OFFSET, &cmd, 0);
mgp->intr_coal_delay_ptr = (__iomem __be32 *) (mgp->sram + cmd.data0);
@@ -1619,6 +1617,41 @@ static void myri10ge_free_rings(struct net_device *dev)
mgp->tx.req_list = NULL;
}
+static int myri10ge_request_irq(struct myri10ge_priv *mgp)
+{
+ struct pci_dev *pdev = mgp->pdev;
+ int status;
+
+ if (myri10ge_msi) {
+ status = pci_enable_msi(pdev);
+ if (status != 0)
+ dev_err(&pdev->dev,
+ "Error %d setting up MSI; falling back to xPIC\n",
+ status);
+ else
+ mgp->msi_enabled = 1;
+ } else {
+ mgp->msi_enabled = 0;
+ }
+ status = request_irq(pdev->irq, myri10ge_intr, IRQF_SHARED,
+ mgp->dev->name, mgp);
+ if (status != 0) {
+ dev_err(&pdev->dev, "failed to allocate IRQ\n");
+ if (mgp->msi_enabled)
+ pci_disable_msi(pdev);
+ }
+ return status;
+}
+
+static void myri10ge_free_irq(struct myri10ge_priv *mgp)
+{
+ struct pci_dev *pdev = mgp->pdev;
+
+ free_irq(pdev->irq, mgp);
+ if (mgp->msi_enabled)
+ pci_disable_msi(pdev);
+}
+
static int myri10ge_open(struct net_device *dev)
{
struct myri10ge_priv *mgp;
@@ -1634,10 +1667,13 @@ static int myri10ge_open(struct net_device *dev)
status = myri10ge_reset(mgp);
if (status != 0) {
printk(KERN_ERR "myri10ge: %s: failed reset\n", dev->name);
- mgp->running = MYRI10GE_ETH_STOPPED;
- return -ENXIO;
+ goto abort_with_nothing;
}
+ status = myri10ge_request_irq(mgp);
+ if (status != 0)
+ goto abort_with_nothing;
+
/* decide what small buffer size to use. For good TCP rx
* performance, it is important to not receive 1514 byte
* frames into jumbo buffers, as it confuses the socket buffer
@@ -1677,7 +1713,7 @@ static int myri10ge_open(struct net_device *dev)
"myri10ge: %s: failed to get ring sizes or locations\n",
dev->name);
mgp->running = MYRI10GE_ETH_STOPPED;
- return -ENXIO;
+ goto abort_with_irq;
}
if (mgp->mtrr >= 0) {
@@ -1708,7 +1744,7 @@ static int myri10ge_open(struct net_device *dev)
status = myri10ge_allocate_rings(dev);
if (status != 0)
- goto abort_with_nothing;
+ goto abort_with_irq;
/* now give firmware buffers sizes, and MTU */
cmd.data0 = dev->mtu + ETH_HLEN + VLAN_HLEN;
@@ -1771,6 +1807,9 @@ static int myri10ge_open(struct net_device *dev)
abort_with_rings:
myri10ge_free_rings(dev);
+abort_with_irq:
+ myri10ge_free_irq(mgp);
+
abort_with_nothing:
mgp->running = MYRI10GE_ETH_STOPPED;
return -ENOMEM;
@@ -1807,7 +1846,7 @@ static int myri10ge_close(struct net_device *dev)
printk(KERN_ERR "myri10ge: %s never got down irq\n", dev->name);
netif_tx_disable(dev);
-
+ myri10ge_free_irq(mgp);
myri10ge_free_rings(dev);
mgp->running = MYRI10GE_ETH_STOPPED;
@@ -2529,7 +2568,6 @@ static int myri10ge_suspend(struct pci_dev *pdev, pm_message_t state)
rtnl_unlock();
}
myri10ge_dummy_rdma(mgp, 0);
- free_irq(pdev->irq, mgp);
myri10ge_save_state(mgp);
pci_disable_device(pdev);
pci_set_power_state(pdev, pci_choose_state(pdev, state));
@@ -2565,13 +2603,6 @@ static int myri10ge_resume(struct pci_dev *pdev)
pci_set_master(pdev);
- status = request_irq(pdev->irq, myri10ge_intr, IRQF_SHARED,
- netdev->name, mgp);
- if (status != 0) {
- dev_err(&pdev->dev, "failed to allocate IRQ\n");
- goto abort_with_enabled;
- }
-
myri10ge_reset(mgp);
myri10ge_dummy_rdma(mgp, 1);
@@ -2581,8 +2612,11 @@ static int myri10ge_resume(struct pci_dev *pdev)
if (netif_running(netdev)) {
rtnl_lock();
- myri10ge_open(netdev);
+ status = myri10ge_open(netdev);
rtnl_unlock();
+ if (status != 0)
+ goto abort_with_enabled;
+
}
netif_device_attach(netdev);
@@ -2860,23 +2894,6 @@ static int myri10ge_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
goto abort_with_firmware;
}
- if (myri10ge_msi) {
- status = pci_enable_msi(pdev);
- if (status != 0)
- dev_err(&pdev->dev,
- "Error %d setting up MSI; falling back to xPIC\n",
- status);
- else
- mgp->msi_enabled = 1;
- }
-
- status = request_irq(pdev->irq, myri10ge_intr, IRQF_SHARED,
- netdev->name, mgp);
- if (status != 0) {
- dev_err(&pdev->dev, "failed to allocate IRQ\n");
- goto abort_with_firmware;
- }
-
pci_set_drvdata(pdev, mgp);
if ((myri10ge_initial_mtu + ETH_HLEN) > MYRI10GE_MAX_ETHER_MTU)
myri10ge_initial_mtu = MYRI10GE_MAX_ETHER_MTU - ETH_HLEN;
@@ -2913,8 +2930,7 @@ static int myri10ge_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
dev_err(&pdev->dev, "register_netdev failed: %d\n", status);
goto abort_with_state;
}
- dev_info(dev, "%s IRQ %d, tx bndry %d, fw %s, WC %s\n",
- (mgp->msi_enabled ? "MSI" : "xPIC"),
+ dev_info(dev, "%d, tx bndry %d, fw %s, WC %s\n",
pdev->irq, mgp->tx.boundary, mgp->fw_name,
(mgp->mtrr >= 0 ? "Enabled" : "Disabled"));
@@ -2922,9 +2938,6 @@ static int myri10ge_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
abort_with_state:
myri10ge_restore_state(mgp);
- free_irq(pdev->irq, mgp);
- if (mgp->msi_enabled)
- pci_disable_msi(pdev);
abort_with_firmware:
myri10ge_dummy_rdma(mgp, 0);
@@ -2975,9 +2988,6 @@ static void myri10ge_remove(struct pci_dev *pdev)
flush_scheduled_work();
netdev = mgp->dev;
unregister_netdev(netdev);
- free_irq(pdev->irq, mgp);
- if (mgp->msi_enabled)
- pci_disable_msi(pdev);
myri10ge_dummy_rdma(mgp, 0);
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-23 15:21:09 +0000