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i40evf: support virtual channel API version 1.1

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Store off the PF's API version, then use it to determine whether or not
to send it our capabilities. Change the version checking to allow for PF
drivers with lower API versions than our current version, so we can
still talk to PF drivers over the 1.0 API.

Change-ID: I8edc55d1229c7decf0ed3f285a63032694007c2e
Signed-off-by: Mitch Williams <mitch.a.williams@intel.com>
Tested-by: Jim young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Mitch Williams 2015-06-04 16:23:59 -04:00 committed by Jeff Kirsher
parent e6d038de13
commit ee1693e5a5
2 changed files with 11 additions and 2 deletions
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6
drivers/net/ethernet/intel/i40evf/i40evf_main.c
View File

@ -2113,6 +2113,12 @@ static void i40evf_init_task(struct work_struct *work)
if (err) {
if (err == I40E_ERR_ADMIN_QUEUE_NO_WORK)
err = i40evf_send_api_ver(adapter);
else
dev_err(&pdev->dev, "Unsupported PF API version %d.%d, expected %d.%d\n",
adapter->pf_version.major,
adapter->pf_version.minor,
I40E_VIRTCHNL_VERSION_MAJOR,
I40E_VIRTCHNL_VERSION_MINOR);
goto err;
}
err = i40evf_send_vf_config_msg(adapter);

7
drivers/net/ethernet/intel/i40evf/i40evf_virtchnl.c
View File

@ -125,8 +125,11 @@ int i40evf_verify_api_ver(struct i40evf_adapter *adapter)
}
pf_vvi = (struct i40e_virtchnl_version_info *)event.msg_buf;
if ((pf_vvi->major != I40E_VIRTCHNL_VERSION_MAJOR) ||
(pf_vvi->minor != I40E_VIRTCHNL_VERSION_MINOR))
adapter->pf_version = *pf_vvi;
if ((pf_vvi->major > I40E_VIRTCHNL_VERSION_MAJOR) ||
((pf_vvi->major == I40E_VIRTCHNL_VERSION_MAJOR) &&
(pf_vvi->minor > I40E_VIRTCHNL_VERSION_MINOR)))
err = -EIO;
out_alloc: