diff options
| author | Jacob Keller <jacob.e.keller@intel.com> | 2022-12-21 12:38:17 +0100 |
|---|---|---|
| committer | Tony Nguyen <anthony.l.nguyen@intel.com> | 2023-02-03 09:54:18 -0800 |
| commit | a696d61528f08d2fac221dcb618495f43cccdcb3 (patch) | |
| tree | 0875716088e601d233cf01bc5e16bf80a33e1005 /drivers/net/ethernet/intel/ice/ice_lib.c | |
| parent | 6624e780a577fc59678853be7959a153558e11b1 (diff) | |
| download | lwn-a696d61528f08d2fac221dcb618495f43cccdcb3.tar.gz lwn-a696d61528f08d2fac221dcb618495f43cccdcb3.zip | |
ice: stop hard coding the ICE_VSI_CTRL location
When allocating the ICE_VSI_CTRL, the allocated struct ice_vsi pointer is
stored into the PF's pf->vsi array at a fixed location. This was
historically done on the basis that it could provide an O(1) lookup for the
special control VSI.
Since we store the ctrl_vsi_idx, we already have O(1) lookup regardless of
where in the array we store this VSI.
Simplify the logic in ice_vsi_alloc by using the same method of storing the
control VSI as other types of VSIs.
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_lib.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_lib.c | 34 |
1 files changed, 15 insertions, 19 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c index f9690c0fe5da..528783de0df0 100644 --- a/drivers/net/ethernet/intel/ice/ice_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_lib.c @@ -479,10 +479,7 @@ int ice_vsi_free(struct ice_vsi *vsi) /* updates the PF for this cleared VSI */ pf->vsi[vsi->idx] = NULL; - if (vsi->idx < pf->next_vsi && vsi->type != ICE_VSI_CTRL) - pf->next_vsi = vsi->idx; - if (vsi->idx < pf->next_vsi && vsi->type == ICE_VSI_CTRL && vsi->vf) - pf->next_vsi = vsi->idx; + pf->next_vsi = vsi->idx; ice_vsi_free_stats(vsi); ice_vsi_free_arrays(vsi); @@ -690,23 +687,22 @@ ice_vsi_alloc(struct ice_pf *pf, struct ice_port_info *pi, vsi->vf = vf; set_bit(ICE_VSI_DOWN, vsi->state); - if (vsi->type == ICE_VSI_CTRL && !vf) { - /* Use the last VSI slot as the index for PF control VSI */ - vsi->idx = pf->num_alloc_vsi - 1; - pf->ctrl_vsi_idx = vsi->idx; - pf->vsi[vsi->idx] = vsi; - } else { - /* fill slot and make note of the index */ - vsi->idx = pf->next_vsi; - pf->vsi[pf->next_vsi] = vsi; + /* fill slot and make note of the index */ + vsi->idx = pf->next_vsi; + pf->vsi[pf->next_vsi] = vsi; - /* prepare pf->next_vsi for next use */ - pf->next_vsi = ice_get_free_slot(pf->vsi, pf->num_alloc_vsi, - pf->next_vsi); - } + /* prepare pf->next_vsi for next use */ + pf->next_vsi = ice_get_free_slot(pf->vsi, pf->num_alloc_vsi, + pf->next_vsi); - if (vsi->type == ICE_VSI_CTRL && vf) - vf->ctrl_vsi_idx = vsi->idx; + if (vsi->type == ICE_VSI_CTRL) { + if (vf) { + vf->ctrl_vsi_idx = vsi->idx; + } else { + WARN_ON(pf->ctrl_vsi_idx != ICE_NO_VSI); + pf->ctrl_vsi_idx = vsi->idx; + } + } unlock_pf: mutex_unlock(&pf->sw_mutex); |