From 7eb517e434c653a4afa16ec3d0a750c2f46b3560 Mon Sep 17 00:00:00 2001 From: Jacob Keller Date: Tue, 22 Feb 2022 16:27:07 -0800 Subject: [PATCH] ice: convert ice_reset_vf to take flags The ice_reset_vf function takes a boolean parameter which indicates whether or not the reset is due to a VFLR event. This is somewhat confusing to read because readers must interpret what "true" and "false" mean when seeing a line of code like "ice_reset_vf(vf, false)". We will want to add another toggle to the ice_reset_vf in a following change. To avoid proliferating many arguments, convert this function to take flags instead. ICE_VF_RESET_VFLR will indicate if this is a VFLR reset. A value of 0 indicates no flags. One could argue that "ice_reset_vf(vf, 0)" is no more readable than "ice_reset_vf(vf, false)".. However, this type of flags interface is somewhat common and using 0 to mean "no flags" makes sense in this context. We could bother to add a define for "ICE_VF_RESET_PLAIN" or something similar, but this can be confusing since its not an actual bit flag. This paves the way to add another flag to the function in a following change. Signed-off-by: Jacob Keller Tested-by: Konrad Jankowski Signed-off-by: Tony Nguyen --- drivers/net/ethernet/intel/ice/ice_main.c | 2 +- drivers/net/ethernet/intel/ice/ice_sriov.c | 6 +++--- drivers/net/ethernet/intel/ice/ice_vf_lib.c | 9 ++++++--- drivers/net/ethernet/intel/ice/ice_vf_lib.h | 9 +++++++-- 4 files changed, 17 insertions(+), 9 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index 3cec52b09c6d..2e23fdc099e0 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -1824,7 +1824,7 @@ static void ice_handle_mdd_event(struct ice_pf *pf) */ ice_print_vf_rx_mdd_event(vf); mutex_lock(&vf->cfg_lock); - ice_reset_vf(vf, false); + ice_reset_vf(vf, 0); mutex_unlock(&vf->cfg_lock); } } diff --git a/drivers/net/ethernet/intel/ice/ice_sriov.c b/drivers/net/ethernet/intel/ice/ice_sriov.c index 4a8cf8f646c8..c234e4edc7f0 100644 --- a/drivers/net/ethernet/intel/ice/ice_sriov.c +++ b/drivers/net/ethernet/intel/ice/ice_sriov.c @@ -1393,7 +1393,7 @@ void ice_process_vflr_event(struct ice_pf *pf) if (reg & BIT(bit_idx)) { /* GLGEN_VFLRSTAT bit will be cleared in ice_reset_vf */ mutex_lock(&vf->cfg_lock); - ice_reset_vf(vf, true); + ice_reset_vf(vf, ICE_VF_RESET_VFLR); mutex_unlock(&vf->cfg_lock); } } @@ -1407,7 +1407,7 @@ void ice_process_vflr_event(struct ice_pf *pf) static void ice_vc_reset_vf(struct ice_vf *vf) { ice_vc_notify_vf_reset(vf); - ice_reset_vf(vf, false); + ice_reset_vf(vf, 0); } /** @@ -1724,7 +1724,7 @@ err: static void ice_vc_reset_vf_msg(struct ice_vf *vf) { if (test_bit(ICE_VF_STATE_INIT, vf->vf_states)) - ice_reset_vf(vf, false); + ice_reset_vf(vf, 0); } /** diff --git a/drivers/net/ethernet/intel/ice/ice_vf_lib.c b/drivers/net/ethernet/intel/ice/ice_vf_lib.c index d37232197bde..3b4e55c62786 100644 --- a/drivers/net/ethernet/intel/ice/ice_vf_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_vf_lib.c @@ -444,13 +444,16 @@ void ice_reset_all_vfs(struct ice_pf *pf) /** * ice_reset_vf - Reset a particular VF * @vf: pointer to the VF structure - * @is_vflr: true if VFLR was issued, false if not + * @flags: flags controlling behavior of the reset + * + * Flags: + * ICE_VF_RESET_VFLR - Indicates a reset is due to VFLR event * * 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 * rebuild. */ -int ice_reset_vf(struct ice_vf *vf, bool is_vflr) +int ice_reset_vf(struct ice_vf *vf, u32 flags) { struct ice_pf *pf = vf->pf; struct ice_vsi *vsi; @@ -478,7 +481,7 @@ int ice_reset_vf(struct ice_vf *vf, bool is_vflr) /* Set VF disable bit state here, before triggering reset */ set_bit(ICE_VF_STATE_DIS, vf->vf_states); - ice_trigger_vf_reset(vf, is_vflr, false); + ice_trigger_vf_reset(vf, flags & ICE_VF_RESET_VFLR, false); vsi = ice_get_vf_vsi(vf); diff --git a/drivers/net/ethernet/intel/ice/ice_vf_lib.h b/drivers/net/ethernet/intel/ice/ice_vf_lib.h index 811b6cc8ad67..071b7f99e2d9 100644 --- a/drivers/net/ethernet/intel/ice/ice_vf_lib.h +++ b/drivers/net/ethernet/intel/ice/ice_vf_lib.h @@ -133,6 +133,11 @@ struct ice_vf { struct devlink_port devlink_port; }; +/* Flags for controlling behavior of ice_reset_vf */ +enum ice_vf_reset_flags { + ICE_VF_RESET_VFLR = BIT(0), /* Indicate a VFLR reset */ +}; + static inline u16 ice_vf_get_port_vlan_id(struct ice_vf *vf) { return vf->port_vlan_info.vid; @@ -212,7 +217,7 @@ int ice_vf_set_vsi_promisc(struct ice_vf *vf, struct ice_vsi *vsi, u8 promisc_m); int ice_vf_clear_vsi_promisc(struct ice_vf *vf, struct ice_vsi *vsi, u8 promisc_m); -int ice_reset_vf(struct ice_vf *vf, bool is_vflr); +int ice_reset_vf(struct ice_vf *vf, u32 flags); void ice_reset_all_vfs(struct ice_pf *pf); #else /* CONFIG_PCI_IOV */ static inline struct ice_vf *ice_get_vf_by_id(struct ice_pf *pf, u16 vf_id) @@ -270,7 +275,7 @@ ice_vf_clear_vsi_promisc(struct ice_vf *vf, struct ice_vsi *vsi, u8 promisc_m) return -EOPNOTSUPP; } -static inline int ice_reset_vf(struct ice_vf *vf, bool is_vflr) +static inline int ice_reset_vf(struct ice_vf *vf, u32 flags) { return 0; } -- 2.39.5