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ice: introduce ICE_VF_RESET_NOTIFY flag

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In some cases of resetting a VF, the PF would like to first notify the
VF that a reset is impending. This is currently done via
ice_vc_notify_vf_reset. A wrapper to ice_reset_vf, ice_vf_reset_vf, is
used to call this function first before calling ice_reset_vf.

In fact, every single call to ice_vc_notify_vf_reset occurs just prior
to a call to ice_vc_reset_vf.

Now that ice_reset_vf has flags, replace this separate call with an
ICE_VF_RESET_NOTIFY flag. This removes an unnecessary exported function
of ice_vc_notify_vf_reset, and also makes there be a single function to
reset VFs (ice_reset_vf).

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Konrad Jankowski <konrad0.jankowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Jacob Keller 2022-02-22 16:27:08 -08:00 committed by Tony Nguyen
parent 7eb517e434
commit 9dbb33da12
3 changed files with 34 additions and 39 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

44
drivers/net/ethernet/intel/ice/ice_sriov.c
View File

@ -829,30 +829,6 @@ void ice_vc_notify_reset(struct ice_pf *pf)
(u8 *)&pfe, sizeof(struct virtchnl_pf_event));
}
/**
* ice_vc_notify_vf_reset - Notify VF of a reset event
* @vf: pointer to the VF structure
*/
static void ice_vc_notify_vf_reset(struct ice_vf *vf)
{
struct virtchnl_pf_event pfe;
struct ice_pf *pf = vf->pf;
/* Bail out if VF is in disabled state, neither initialized, nor active
* state - otherwise proceed with notifications
*/
if ((!test_bit(ICE_VF_STATE_INIT, vf->vf_states) &&
!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) ||
test_bit(ICE_VF_STATE_DIS, vf->vf_states))
return;
pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING;
pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM;
ice_aq_send_msg_to_vf(&pf->hw, vf->vf_id, VIRTCHNL_OP_EVENT,
VIRTCHNL_STATUS_SUCCESS, (u8 *)&pfe, sizeof(pfe),
NULL);
}
/**
* ice_init_vf_vsi_res - initialize/setup VF VSI resources
* @vf: VF to initialize/setup the VSI for
@ -1400,16 +1376,6 @@ void ice_process_vflr_event(struct ice_pf *pf)
mutex_unlock(&pf->vfs.table_lock);
}
/**
* ice_vc_reset_vf - Perform software reset on the VF after informing the AVF
* @vf: pointer to the VF info
*/
static void ice_vc_reset_vf(struct ice_vf *vf)
{
ice_vc_notify_vf_reset(vf);
ice_reset_vf(vf, 0);
}
/**
* ice_get_vf_from_pfq - get the VF who owns the PF space queue passed in
* @pf: PF used to index all VFs
@ -1488,7 +1454,7 @@ ice_vf_lan_overflow_event(struct ice_pf *pf, struct ice_rq_event_info *event)
return;
mutex_lock(&vf->cfg_lock);
ice_vc_reset_vf(vf);
ice_reset_vf(vf, ICE_VF_RESET_NOTIFY);
mutex_unlock(&vf->cfg_lock);
ice_put_vf(vf);
@ -3311,7 +3277,7 @@ static int ice_vc_request_qs_msg(struct ice_vf *vf, u8 *msg)
} else {
/* request is successful, then reset VF */
vf->num_req_qs = req_queues;
ice_vc_reset_vf(vf);
ice_reset_vf(vf, ICE_VF_RESET_NOTIFY);
dev_info(dev, "VF %d granted request of %u queues.\n",
vf->vf_id, req_queues);
return 0;
@ -5183,7 +5149,7 @@ int ice_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
mac, vf_id);
}
ice_vc_reset_vf(vf);
ice_reset_vf(vf, ICE_VF_RESET_NOTIFY);
mutex_unlock(&vf->cfg_lock);
out_put_vf:
@ -5227,7 +5193,7 @@ int ice_set_vf_trust(struct net_device *netdev, int vf_id, bool trusted)
mutex_lock(&vf->cfg_lock);
vf->trusted = trusted;
ice_vc_reset_vf(vf);
ice_reset_vf(vf, ICE_VF_RESET_NOTIFY);
dev_info(ice_pf_to_dev(pf), "VF %u is now %strusted\n",
vf_id, trusted ? "" : "un");
@ -5549,7 +5515,7 @@ ice_set_vf_port_vlan(struct net_device *netdev, int vf_id, u16 vlan_id, u8 qos,
else
dev_info(dev, "Clearing port VLAN on VF %d\n", vf_id);
ice_vc_reset_vf(vf);
ice_reset_vf(vf, ICE_VF_RESET_NOTIFY);
mutex_unlock(&vf->cfg_lock);
out_put_vf:

28
drivers/net/ethernet/intel/ice/ice_vf_lib.c
View File

@ -441,6 +441,30 @@ void ice_reset_all_vfs(struct ice_pf *pf)
mutex_unlock(&pf->vfs.table_lock);
}
/**
* ice_notify_vf_reset - Notify VF of a reset event
* @vf: pointer to the VF structure
*/
static void ice_notify_vf_reset(struct ice_vf *vf)
{
struct ice_hw *hw = &vf->pf->hw;
struct virtchnl_pf_event pfe;
/* Bail out if VF is in disabled state, neither initialized, nor active
* state - otherwise proceed with notifications
*/
if ((!test_bit(ICE_VF_STATE_INIT, vf->vf_states) &&
!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) ||
test_bit(ICE_VF_STATE_DIS, vf->vf_states))
return;
pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING;
pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM;
ice_aq_send_msg_to_vf(hw, vf->vf_id, VIRTCHNL_OP_EVENT,
VIRTCHNL_STATUS_SUCCESS, (u8 *)&pfe, sizeof(pfe),
NULL);
}
/**
* ice_reset_vf - Reset a particular VF
* @vf: pointer to the VF structure
@ -448,6 +472,7 @@ void ice_reset_all_vfs(struct ice_pf *pf)
*
* Flags:
* ICE_VF_RESET_VFLR - Indicates a reset is due to VFLR event
* ICE_VF_RESET_NOTIFY - Send VF a notification prior to reset
*
* Returns 0 if the VF is currently in reset, if the resets are disabled, or
* if the VF resets successfully. Returns an error code if the VF fails to
@ -467,6 +492,9 @@ int ice_reset_vf(struct ice_vf *vf, u32 flags)
dev = ice_pf_to_dev(pf);
hw = &pf->hw;
if (flags & ICE_VF_RESET_NOTIFY)
ice_notify_vf_reset(vf);
if (test_bit(ICE_VF_RESETS_DISABLED, pf->state)) {
dev_dbg(dev, "Trying to reset VF %d, but all VF resets are disabled\n",
vf->vf_id);

1
drivers/net/ethernet/intel/ice/ice_vf_lib.h
View File

@ -136,6 +136,7 @@ struct ice_vf {
/* Flags for controlling behavior of ice_reset_vf */
enum ice_vf_reset_flags {
ICE_VF_RESET_VFLR = BIT(0), /* Indicate a VFLR reset */
ICE_VF_RESET_NOTIFY = BIT(1), /* Notify VF prior to reset */
};
static inline u16 ice_vf_get_port_vlan_id(struct ice_vf *vf)