From a629cf0a018b8d80b65bfd2b7f0d209a52834315 Mon Sep 17 00:00:00 2001 From: Anirudh Venkataramanan Date: Thu, 28 Feb 2019 15:24:27 -0800 Subject: [PATCH] ice: Update rings based on TC information This patch adds a new function ice_vsi_cfg_dcb_rings which updates a VSI's rings based on DCB traffic class information. Signed-off-by: Anirudh Venkataramanan Tested-by: Andrew Bowers Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ice/ice_dcb_lib.c | 38 ++++++++++++++++++++ drivers/net/ethernet/intel/ice/ice_dcb_lib.h | 8 +++++ drivers/net/ethernet/intel/ice/ice_lib.c | 2 ++ drivers/net/ethernet/intel/ice/ice_main.c | 1 + drivers/net/ethernet/intel/ice/ice_txrx.h | 3 ++ 5 files changed, 52 insertions(+) diff --git a/drivers/net/ethernet/intel/ice/ice_dcb_lib.c b/drivers/net/ethernet/intel/ice/ice_dcb_lib.c index 6bbca2c99dbd..aabba91189bd 100644 --- a/drivers/net/ethernet/intel/ice/ice_dcb_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_dcb_lib.c @@ -57,6 +57,44 @@ u8 ice_dcb_get_num_tc(struct ice_dcbx_cfg *dcbcfg) return ret; } +/** + * ice_vsi_cfg_dcb_rings - Update rings to reflect DCB TC + * @vsi: VSI owner of rings being updated + */ +void ice_vsi_cfg_dcb_rings(struct ice_vsi *vsi) +{ + struct ice_ring *tx_ring, *rx_ring; + u16 qoffset, qcount; + int i, n; + + if (!test_bit(ICE_FLAG_DCB_ENA, vsi->back->flags)) { + /* Reset the TC information */ + for (i = 0; i < vsi->num_txq; i++) { + tx_ring = vsi->tx_rings[i]; + tx_ring->dcb_tc = 0; + } + for (i = 0; i < vsi->num_rxq; i++) { + rx_ring = vsi->rx_rings[i]; + rx_ring->dcb_tc = 0; + } + return; + } + + ice_for_each_traffic_class(n) { + if (!(vsi->tc_cfg.ena_tc & BIT(n))) + break; + + qoffset = vsi->tc_cfg.tc_info[n].qoffset; + qcount = vsi->tc_cfg.tc_info[n].qcount_tx; + for (i = qoffset; i < (qoffset + qcount); i++) { + tx_ring = vsi->tx_rings[i]; + rx_ring = vsi->rx_rings[i]; + tx_ring->dcb_tc = n; + rx_ring->dcb_tc = n; + } + } +} + /** * ice_pf_dcb_recfg - Reconfigure all VEBs and VSIs * @pf: pointer to the PF struct diff --git a/drivers/net/ethernet/intel/ice/ice_dcb_lib.h b/drivers/net/ethernet/intel/ice/ice_dcb_lib.h index 3a2ffc98f292..8932702b0b66 100644 --- a/drivers/net/ethernet/intel/ice/ice_dcb_lib.h +++ b/drivers/net/ethernet/intel/ice/ice_dcb_lib.h @@ -10,10 +10,16 @@ #ifdef CONFIG_DCB u8 ice_dcb_get_ena_tc(struct ice_dcbx_cfg *dcbcfg); u8 ice_dcb_get_num_tc(struct ice_dcbx_cfg *dcbcfg); +void ice_vsi_cfg_dcb_rings(struct ice_vsi *vsi); int ice_init_pf_dcb(struct ice_pf *pf); void ice_dcb_process_lldp_set_mib_change(struct ice_pf *pf, struct ice_rq_event_info *event); +static inline void +ice_set_cgd_num(struct ice_tlan_ctx *tlan_ctx, struct ice_ring *ring) +{ + tlan_ctx->cgd_num = ring->dcb_tc; +} #else static inline u8 ice_dcb_get_ena_tc(struct ice_dcbx_cfg __always_unused *dcbcfg) { @@ -31,6 +37,8 @@ static inline int ice_init_pf_dcb(struct ice_pf *pf) return -EOPNOTSUPP; } +#define ice_vsi_cfg_dcb_rings(vsi) do {} while (0) #define ice_dcb_process_lldp_set_mib_change(pf, event) do {} while (0) +#define ice_set_cgd_num(tlan_ctx, ring) do {} while (0) #endif /* CONFIG_DCB */ #endif /* _ICE_DCB_LIB_H_ */ diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c index f3574daa147c..f31129e4e9cf 100644 --- a/drivers/net/ethernet/intel/ice/ice_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_lib.c @@ -125,6 +125,8 @@ ice_setup_tx_ctx(struct ice_ring *ring, struct ice_tlan_ctx *tlan_ctx, u16 pf_q) /* Transmit Queue Length */ tlan_ctx->qlen = ring->count; + ice_set_cgd_num(tlan_ctx, ring); + /* PF number */ tlan_ctx->pf_num = hw->pf_id; diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c index ac560862f560..fa8160656b00 100644 --- a/drivers/net/ethernet/intel/ice/ice_main.c +++ b/drivers/net/ethernet/intel/ice/ice_main.c @@ -2940,6 +2940,7 @@ static int ice_vsi_cfg(struct ice_vsi *vsi) if (err) return err; } + ice_vsi_cfg_dcb_rings(vsi); err = ice_vsi_cfg_lan_txqs(vsi); if (!err) diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.h b/drivers/net/ethernet/intel/ice/ice_txrx.h index 60131b84b021..53903f846834 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx.h +++ b/drivers/net/ethernet/intel/ice/ice_txrx.h @@ -160,6 +160,9 @@ struct ice_ring { }; u16 q_index; /* Queue number of ring */ u32 txq_teid; /* Added Tx queue TEID */ +#ifdef CONFIG_DCB + u8 dcb_tc; /* Traffic class of ring */ +#endif /* CONFIG_DCB */ u16 count; /* Number of descriptors */ u16 reg_idx; /* HW register index of the ring */ -- 2.30.2