diff options
| author | Casey Leedom <leedom@chelsio.com> | 2010-11-11 09:06:53 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-11-12 12:31:01 -0800 |
| commit | e68e6133e2daef6fc40e91621a1e26938e428e9e (patch) | |
| tree | 21759991e47e782de8ebb4153396b651a0ef0095 /drivers/net/cxgb4vf/cxgb4vf_main.c | |
| parent | e7a3795f56122cc92530c3f9412b8ff19b70184c (diff) | |
cxgb4vf: add call to Firmware to reset VF State.
Add call to Firmware to reset its VF State when we first attach to the VF.
Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/cxgb4vf/cxgb4vf_main.c')
| -rw-r--r-- | drivers/net/cxgb4vf/cxgb4vf_main.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/net/cxgb4vf/cxgb4vf_main.c b/drivers/net/cxgb4vf/cxgb4vf_main.c index 8da3bda13f3..c3449bbc585 100644 --- a/drivers/net/cxgb4vf/cxgb4vf_main.c +++ b/drivers/net/cxgb4vf/cxgb4vf_main.c @@ -2065,6 +2065,22 @@ static int adap_init0(struct adapter *adapter) } /* + * Some environments do not properly handle PCIE FLRs -- e.g. in Linux + * 2.6.31 and later we can't call pci_reset_function() in order to + * issue an FLR because of a self- deadlock on the device semaphore. + * Meanwhile, the OS infrastructure doesn't issue FLRs in all the + * cases where they're needed -- for instance, some versions of KVM + * fail to reset "Assigned Devices" when the VM reboots. Therefore we + * use the firmware based reset in order to reset any per function + * state. + */ + err = t4vf_fw_reset(adapter); + if (err < 0) { + dev_err(adapter->pdev_dev, "FW reset failed: err=%d\n", err); + return err; + } + + /* * Grab basic operational parameters. These will predominantly have * been set up by the Physical Function Driver or will be hard coded * into the adapter. We just have to live with them ... Note that |