netdev - [PATCH net 1/4] ice: change vfs.num_msix_per to vf->num

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Date: Tue,  5 Dec 2023 13:19:12 -0800
From: Tony Nguyen <anthony.l.nguyen@...el.com>
To: davem@...emloft.net,
	kuba@...nel.org,
	pabeni@...hat.com,
	edumazet@...gle.com,
	netdev@...r.kernel.org
Cc: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>,
	anthony.l.nguyen@...el.com,
	Jacob Keller <jacob.e.keller@...el.com>,
	Simon Horman <horms@...nel.org>,
	Rafal Romanowski <rafal.romanowski@...el.com>
Subject: [PATCH net 1/4] ice: change vfs.num_msix_per to vf->num_msix

From: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>

vfs::num_msix_per should be only used as default value for
vf->num_msix. For other use cases vf->num_msix should be used, as VF can
have different MSI-X amount values.

Fix incorrect register index calculation. vfs::num_msix_per and
pf->sriov_base_vector shouldn't be used after implementation of changing
MSI-X amount on VFs. Instead vf->first_vector_idx should be used, as it
is storing value for first irq index.

Fixes: fe1c5ca2fe76 ("ice: implement num_msix field per VF")
Reviewed-by: Jacob Keller <jacob.e.keller@...el.com>
Signed-off-by: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>
Reviewed-by: Simon Horman <horms@...nel.org>
Tested-by: Rafal Romanowski <rafal.romanowski@...el.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com>
---
 drivers/net/ethernet/intel/ice/ice_sriov.c    | 7 +------
 drivers/net/ethernet/intel/ice/ice_virtchnl.c | 5 ++---
 2 files changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_sriov.c b/drivers/net/ethernet/intel/ice/ice_sriov.c
index 2a5e6616cc0a..e1494f24f661 100644
--- a/drivers/net/ethernet/intel/ice/ice_sriov.c
+++ b/drivers/net/ethernet/intel/ice/ice_sriov.c
@@ -374,16 +374,11 @@ static void ice_ena_vf_mappings(struct ice_vf *vf)
  */
 int ice_calc_vf_reg_idx(struct ice_vf *vf, struct ice_q_vector *q_vector)
 {
-	struct ice_pf *pf;
-
 	if (!vf || !q_vector)
 		return -EINVAL;
 
-	pf = vf->pf;
-
 	/* always add one to account for the OICR being the first MSIX */
-	return pf->sriov_base_vector + pf->vfs.num_msix_per * vf->vf_id +
-		q_vector->v_idx + 1;
+	return vf->first_vector_idx + q_vector->v_idx + 1;
 }
 
 /**
diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl.c b/drivers/net/ethernet/intel/ice/ice_virtchnl.c
index de11b3186bd7..1c7b4ded948b 100644
--- a/drivers/net/ethernet/intel/ice/ice_virtchnl.c
+++ b/drivers/net/ethernet/intel/ice/ice_virtchnl.c
@@ -1523,7 +1523,6 @@ static int ice_vc_cfg_irq_map_msg(struct ice_vf *vf, u8 *msg)
 	u16 num_q_vectors_mapped, vsi_id, vector_id;
 	struct virtchnl_irq_map_info *irqmap_info;
 	struct virtchnl_vector_map *map;
-	struct ice_pf *pf = vf->pf;
 	struct ice_vsi *vsi;
 	int i;
 
@@ -1535,7 +1534,7 @@ static int ice_vc_cfg_irq_map_msg(struct ice_vf *vf, u8 *msg)
 	 * there is actually at least a single VF queue vector mapped
 	 */
 	if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) ||
-	    pf->vfs.num_msix_per < num_q_vectors_mapped ||
+	    vf->num_msix < num_q_vectors_mapped ||
 	    !num_q_vectors_mapped) {
 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 		goto error_param;
@@ -1557,7 +1556,7 @@ static int ice_vc_cfg_irq_map_msg(struct ice_vf *vf, u8 *msg)
 		/* vector_id is always 0-based for each VF, and can never be
 		 * larger than or equal to the max allowed interrupts per VF
 		 */
-		if (!(vector_id < pf->vfs.num_msix_per) ||
+		if (!(vector_id < vf->num_msix) ||
 		    !ice_vc_isvalid_vsi_id(vf, vsi_id) ||
 		    (!vector_id && (map->rxq_map || map->txq_map))) {
 			v_ret = VIRTCHNL_STATUS_ERR_PARAM;
-- 
2.41.0