hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

cxgb4vf: Turn off SGE RX/TX Callback Timers and interrupts in PCI shutdown routine 

Need to turn off  SGE RX/TX Callback Timers & interrupt in cxgb4vf PCI Shutdown
routine in order to prevent crashes during reboot/poweroff when traffic is
running.

Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hariprasad Shenai 2014-08-05 15:41:28 +05:30 committed by David S. Miller
parent 6ff4e36f8b
commit c2a198569a
1 changed files with 15 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
View File

@ -2876,24 +2876,24 @@ static void cxgb4vf_pci_shutdown(struct pci_dev *pdev)
if (!adapter)
return;
/*
* Disable all Virtual Interfaces. This will shut down the
/* Disable all Virtual Interfaces. This will shut down the
* delivery of all ingress packets into the chip for these
* Virtual Interfaces.
*/
for_each_port(adapter, pidx) {
struct net_device *netdev;
struct port_info *pi;
for_each_port(adapter, pidx)
if (test_bit(pidx, &adapter->registered_device_map))
unregister_netdev(adapter->port[pidx]);
if (!test_bit(pidx, &adapter->registered_device_map))
continue;
netdev = adapter->port[pidx];
if (!netdev)
continue;
pi = netdev_priv(netdev);
t4vf_enable_vi(adapter, pi->viid, false, false);
/* Free up all Queues which will prevent further DMA and
* Interrupts allowing various internal pathways to drain.
*/
t4vf_sge_stop(adapter);
if (adapter->flags & USING_MSIX) {
pci_disable_msix(adapter->pdev);
adapter->flags &= ~USING_MSIX;
} else if (adapter->flags & USING_MSI) {
pci_disable_msi(adapter->pdev);
adapter->flags &= ~USING_MSI;
}
/*
@ -2901,6 +2901,7 @@ static void cxgb4vf_pci_shutdown(struct pci_dev *pdev)
* Interrupts allowing various internal pathways to drain.
*/
t4vf_free_sge_resources(adapter);
pci_set_drvdata(pdev, NULL);
}
/*