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vxge: Fixes in isr routine 

- Fixes in isr routine
   Fixed crash with INTA mode during driver unload. Pass hldev to request_irq
   instead of vdev.
   Fixed Traffic failure with GRO in INTA mode. Pass the correct napi
   context to gro functions.

Signed-off-by: Sreenivasa Honnur <sreenivasa.honnur@neterion.com>
Signed-off-by: Ramkrishna Vepa <ram.vepa@neterion.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sreenivasa Honnur 2009-07-01 21:16:37 +00:00 committed by David S. Miller
parent 6052ae1676
commit a5d165b571
2 changed files with 13 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
drivers/net/vxge/vxge-main.c
View File

@ -374,10 +374,10 @@ vxge_rx_complete(struct vxge_ring *ring, struct sk_buff *skb, u16 vlan,
if (ring->vlgrp && ext_info->vlan &&
(ring->vlan_tag_strip ==
VXGE_HW_VPATH_RPA_STRIP_VLAN_TAG_ENABLE))
vlan_gro_receive(&ring->napi, ring->vlgrp,
vlan_gro_receive(ring->napi_p, ring->vlgrp,
ext_info->vlan, skb);
else
napi_gro_receive(&ring->napi, skb);
napi_gro_receive(ring->napi_p, skb);
} else {
if (ring->vlgrp && vlan &&
(ring->vlan_tag_strip ==
@ -2132,16 +2132,16 @@ int vxge_open_vpaths(struct vxgedev *vdev)
*/
static irqreturn_t vxge_isr_napi(int irq, void *dev_id)
{
struct __vxge_hw_device *hldev = (struct __vxge_hw_device *)dev_id;
struct vxgedev *vdev;
struct net_device *dev;
struct __vxge_hw_device *hldev;
u64 reason;
enum vxge_hw_status status;
struct vxgedev *vdev = (struct vxgedev *) dev_id;;
vxge_debug_intr(VXGE_TRACE, "%s:%d", __func__, __LINE__);
dev = hldev->ndev;
vdev = netdev_priv(dev);
dev = vdev->ndev;
hldev = (struct __vxge_hw_device *)pci_get_drvdata(vdev->pdev);
if (pci_channel_offline(vdev->pdev))
return IRQ_NONE;
@ -2412,15 +2412,13 @@ static void vxge_rem_isr(struct vxgedev *vdev)
#endif
if (vdev->config.intr_type == INTA) {
synchronize_irq(vdev->pdev->irq);
free_irq(vdev->pdev->irq, hldev);
free_irq(vdev->pdev->irq, vdev);
}
}
static int vxge_add_isr(struct vxgedev *vdev)
{
int ret = 0;
struct __vxge_hw_device *hldev =
(struct __vxge_hw_device *) pci_get_drvdata(vdev->pdev);
#ifdef CONFIG_PCI_MSI
int vp_idx = 0, intr_idx = 0, intr_cnt = 0, msix_idx = 0, irq_req = 0;
u64 function_mode = vdev->config.device_hw_info.function_mode;
@ -2574,7 +2572,7 @@ INTA_MODE:
if (vdev->config.intr_type == INTA) {
ret = request_irq((int) vdev->pdev->irq,
vxge_isr_napi,
IRQF_SHARED, vdev->desc[0], hldev);
IRQF_SHARED, vdev->desc[0], vdev);
if (ret) {
vxge_debug_init(VXGE_ERR,
"%s %s-%d: ISR registration failed",
@ -2707,11 +2705,15 @@ vxge_open(struct net_device *dev)
netif_napi_add(dev, &vdev->napi, vxge_poll_inta,
vdev->config.napi_weight);
napi_enable(&vdev->napi);
for (i = 0; i < vdev->no_of_vpath; i++)
vdev->vpaths[i].ring.napi_p = &vdev->napi;
} else {
for (i = 0; i < vdev->no_of_vpath; i++) {
netif_napi_add(dev, &vdev->vpaths[i].ring.napi,
vxge_poll_msix, vdev->config.napi_weight);
napi_enable(&vdev->vpaths[i].ring.napi);
vdev->vpaths[i].ring.napi_p =
&vdev->vpaths[i].ring.napi;
}
}

1
drivers/net/vxge/vxge-main.h
View File

@ -260,6 +260,7 @@ struct vxge_ring {
int gro_enable;
struct napi_struct napi;
struct napi_struct *napi_p;
#define VXGE_MAX_MAC_ADDR_COUNT 30