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| author | Mitch Williams <mitch.a.williams@intel.com> | 2015-04-07 19:45:33 -0400 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2015-04-14 17:34:59 -0700 |
| commit | 055b295d99adb246b2b9284e1d1e602630c119e3 (patch) | |
| tree | dea06010ea0a22e8aeeebec33df1682ad0d25d06 /drivers | |
| parent | ed636960c3b5a44e59eccafef94837d14e3bc10f (diff) | |
| download | linux-stable-055b295d99adb246b2b9284e1d1e602630c119e3.tar.gz linux-stable-055b295d99adb246b2b9284e1d1e602630c119e3.tar.bz2 linux-stable-055b295d99adb246b2b9284e1d1e602630c119e3.zip | |
i40e: notify VFs of link state
Gratuitously notify VFs of link state when they activate their queues.
In general, this is the last thing that a VF driver will do as it opens
its interface, so this is a good time to notify the VF.
Currently, VF devices assume link is up unless told otherwise, which
means that VFs instantiated on a PF with no link will report the wrong
state. This change corrects that issue.
Change-ID: Iea53622904ecc681ac3f8938d81c30033ef9a0a6
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>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c | 50 |
1 files changed, 31 insertions, 19 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c index 9b3fc83119fa..8df2b529289b 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c +++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c @@ -25,6 +25,7 @@ ******************************************************************************/ #include "i40e.h" +static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf); /***********************misc routines*****************************/ @@ -1767,6 +1768,7 @@ int i40e_vc_process_vf_msg(struct i40e_pf *pf, u16 vf_id, u32 v_opcode, break; case I40E_VIRTCHNL_OP_ENABLE_QUEUES: ret = i40e_vc_enable_queues_msg(vf, msg, msglen); + i40e_vc_notify_vf_link_state(vf); break; case I40E_VIRTCHNL_OP_DISABLE_QUEUES: ret = i40e_vc_disable_queues_msg(vf, msg, msglen); @@ -1875,35 +1877,45 @@ static void i40e_vc_vf_broadcast(struct i40e_pf *pf, /** * i40e_vc_notify_link_state - * @pf: pointer to the PF structure + * @vf: pointer to the VF structure * - * send a link status message to all VFs on a given PF + * send a link status message to a single VF **/ -void i40e_vc_notify_link_state(struct i40e_pf *pf) +static void i40e_vc_notify_vf_link_state(struct i40e_vf *vf) { struct i40e_virtchnl_pf_event pfe; + struct i40e_pf *pf = vf->pf; struct i40e_hw *hw = &pf->hw; - struct i40e_vf *vf = pf->vf; struct i40e_link_status *ls = &pf->hw.phy.link_info; - int i; + int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; pfe.event = I40E_VIRTCHNL_EVENT_LINK_CHANGE; pfe.severity = I40E_PF_EVENT_SEVERITY_INFO; - for (i = 0; i < pf->num_alloc_vfs; i++, vf++) { - int abs_vf_id = vf->vf_id + hw->func_caps.vf_base_id; - if (vf->link_forced) { - pfe.event_data.link_event.link_status = vf->link_up; - pfe.event_data.link_event.link_speed = - (vf->link_up ? I40E_LINK_SPEED_40GB : 0); - } else { - pfe.event_data.link_event.link_status = - ls->link_info & I40E_AQ_LINK_UP; - pfe.event_data.link_event.link_speed = ls->link_speed; - } - i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT, - 0, (u8 *)&pfe, sizeof(pfe), - NULL); + if (vf->link_forced) { + pfe.event_data.link_event.link_status = vf->link_up; + pfe.event_data.link_event.link_speed = + (vf->link_up ? I40E_LINK_SPEED_40GB : 0); + } else { + pfe.event_data.link_event.link_status = + ls->link_info & I40E_AQ_LINK_UP; + pfe.event_data.link_event.link_speed = ls->link_speed; } + i40e_aq_send_msg_to_vf(hw, abs_vf_id, I40E_VIRTCHNL_OP_EVENT, + 0, (u8 *)&pfe, sizeof(pfe), NULL); +} + +/** + * i40e_vc_notify_link_state + * @pf: pointer to the PF structure + * + * send a link status message to all VFs on a given PF + **/ +void i40e_vc_notify_link_state(struct i40e_pf *pf) +{ + int i; + + for (i = 0; i < pf->num_alloc_vfs; i++) + i40e_vc_notify_vf_link_state(&pf->vf[i]); } /** |