From 401ce33b32812a8fde6789588416d8c5b232138f Mon Sep 17 00:00:00 2001 From: Brett Creeley Date: Fri, 15 May 2020 17:54:59 -0700 Subject: [PATCH] ice: Always clear QRXFLXP_CNTXT before writing new value Always clear the previous value in QRXFLXP_CNTXT before writing a new value. This will make it so re-used queues will not accidentally take the previously configured settings. Signed-off-by: Brett Creeley Signed-off-by: Tony Nguyen Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ice/ice_base.c | 33 +++++++++++-------------------- drivers/net/ethernet/intel/ice/ice_lib.c | 26 ++++++++++++++++++++++++ drivers/net/ethernet/intel/ice/ice_lib.h | 3 +++ 3 files changed, 40 insertions(+), 22 deletions(-) diff --git a/drivers/net/ethernet/intel/ice/ice_base.c b/drivers/net/ethernet/intel/ice/ice_base.c index a174911..d620d26 100644 --- a/drivers/net/ethernet/intel/ice/ice_base.c +++ b/drivers/net/ethernet/intel/ice/ice_base.c @@ -3,6 +3,7 @@ #include #include "ice_base.h" +#include "ice_lib.h" #include "ice_dcb_lib.h" /** @@ -288,7 +289,6 @@ int ice_setup_rx_ctx(struct ice_ring *ring) u32 rxdid = ICE_RXDID_FLEX_NIC; struct ice_rlan_ctx rlan_ctx; struct ice_hw *hw; - u32 regval; u16 pf_q; int err; @@ -385,27 +385,16 @@ int ice_setup_rx_ctx(struct ice_ring *ring) /* Rx queue threshold in units of 64 */ rlan_ctx.lrxqthresh = 1; - /* Enable Flexible Descriptors in the queue context which - * allows this driver to select a specific receive descriptor format - */ - regval = rd32(hw, QRXFLXP_CNTXT(pf_q)); - if (vsi->type != ICE_VSI_VF) { - regval |= (rxdid << QRXFLXP_CNTXT_RXDID_IDX_S) & - QRXFLXP_CNTXT_RXDID_IDX_M; - - /* increasing context priority to pick up profile ID; - * default is 0x01; setting to 0x03 to ensure profile - * is programming if prev context is of same priority - */ - regval |= (0x03 << QRXFLXP_CNTXT_RXDID_PRIO_S) & - QRXFLXP_CNTXT_RXDID_PRIO_M; - - } else { - regval &= ~(QRXFLXP_CNTXT_RXDID_IDX_M | - QRXFLXP_CNTXT_RXDID_PRIO_M | - QRXFLXP_CNTXT_TS_M); - } - wr32(hw, QRXFLXP_CNTXT(pf_q), regval); + /* Enable Flexible Descriptors in the queue context which + * allows this driver to select a specific receive descriptor format + * increasing context priority to pick up profile ID; default is 0x01; + * setting to 0x03 to ensure profile is programming if prev context is + * of same priority + */ + if (vsi->type != ICE_VSI_VF) + ice_write_qrxflxp_cntxt(hw, pf_q, rxdid, 0x3); + else + ice_write_qrxflxp_cntxt(hw, pf_q, ICE_RXDID_LEGACY_1, 0x3); /* Absolute queue number out of 2K needs to be passed */ err = ice_write_rxq_ctx(hw, &rlan_ctx, pf_q); diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c index 89e8e4f..ecc04a6 100644 --- a/drivers/net/ethernet/intel/ice/ice_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_lib.c @@ -1596,6 +1596,32 @@ void ice_vsi_cfg_frame_size(struct ice_vsi *vsi) } /** + * ice_write_qrxflxp_cntxt - write/configure QRXFLXP_CNTXT register + * @hw: HW pointer + * @pf_q: index of the Rx queue in the PF's queue space + * @rxdid: flexible descriptor RXDID + * @prio: priority for the RXDID for this queue + */ +void +ice_write_qrxflxp_cntxt(struct ice_hw *hw, u16 pf_q, u32 rxdid, u32 prio) +{ + int regval = rd32(hw, QRXFLXP_CNTXT(pf_q)); + + /* clear any previous values */ + regval &= ~(QRXFLXP_CNTXT_RXDID_IDX_M | + QRXFLXP_CNTXT_RXDID_PRIO_M | + QRXFLXP_CNTXT_TS_M); + + regval |= (rxdid << QRXFLXP_CNTXT_RXDID_IDX_S) & + QRXFLXP_CNTXT_RXDID_IDX_M; + + regval |= (prio << QRXFLXP_CNTXT_RXDID_PRIO_S) & + QRXFLXP_CNTXT_RXDID_PRIO_M; + + wr32(hw, QRXFLXP_CNTXT(pf_q), regval); +} + +/** * ice_vsi_cfg_rxqs - Configure the VSI for Rx * @vsi: the VSI being configured * diff --git a/drivers/net/ethernet/intel/ice/ice_lib.h b/drivers/net/ethernet/intel/ice/ice_lib.h index 076e635..d80e6af 100644 --- a/drivers/net/ethernet/intel/ice/ice_lib.h +++ b/drivers/net/ethernet/intel/ice/ice_lib.h @@ -74,6 +74,9 @@ int ice_vsi_rebuild(struct ice_vsi *vsi, bool init_vsi); bool ice_is_reset_in_progress(unsigned long *state); +void +ice_write_qrxflxp_cntxt(struct ice_hw *hw, u16 pf_q, u32 rxdid, u32 prio); + void ice_vsi_put_qs(struct ice_vsi *vsi); void ice_vsi_dis_irq(struct ice_vsi *vsi); -- 2.7.4