From ff1400aa9d34a474d1b9956a69231e92d99644a7 Mon Sep 17 00:00:00 2001 From: Radha Mohan Chintakuntla Date: Sun, 8 May 2022 13:18:13 +0530 Subject: [PATCH] net/cnxk: add receive channel backpressure for SDP The SDP interfaces also need to be configured for NIX receive channel backpressure for packet receive. Signed-off-by: Radha Mohan Chintakuntla Acked-by: Jerin Jacob --- drivers/common/cnxk/roc_nix_fc.c | 11 +++++------ drivers/net/cnxk/cnxk_ethdev.c | 3 +++ 2 files changed, 8 insertions(+), 6 deletions(-) diff --git a/drivers/common/cnxk/roc_nix_fc.c b/drivers/common/cnxk/roc_nix_fc.c index 8e31443b8f..a0505bd65f 100644 --- a/drivers/common/cnxk/roc_nix_fc.c +++ b/drivers/common/cnxk/roc_nix_fc.c @@ -38,16 +38,13 @@ nix_fc_rxchan_bpid_set(struct roc_nix *roc_nix, bool enable) struct nix_bp_cfg_rsp *rsp; int rc = -ENOSPC, i; - if (roc_nix_is_sdp(roc_nix)) - return 0; - if (enable) { req = mbox_alloc_msg_nix_bp_enable(mbox); if (req == NULL) return rc; req->chan_base = 0; - if (roc_nix_is_lbk(roc_nix)) + if (roc_nix_is_lbk(roc_nix) || roc_nix_is_sdp(roc_nix)) req->chan_cnt = NIX_LBK_MAX_CHAN; else req->chan_cnt = NIX_CGX_MAX_CHAN; @@ -203,7 +200,8 @@ nix_fc_cq_config_set(struct roc_nix *roc_nix, struct roc_nix_fc_cfg *fc_cfg) int roc_nix_fc_config_get(struct roc_nix *roc_nix, struct roc_nix_fc_cfg *fc_cfg) { - if (roc_nix_is_vf_or_sdp(roc_nix) && !roc_nix_is_lbk(roc_nix)) + if (!roc_nix_is_pf(roc_nix) && !roc_nix_is_lbk(roc_nix) && + !roc_nix_is_sdp(roc_nix)) return 0; if (fc_cfg->type == ROC_NIX_FC_CQ_CFG) @@ -219,7 +217,8 @@ roc_nix_fc_config_get(struct roc_nix *roc_nix, struct roc_nix_fc_cfg *fc_cfg) int roc_nix_fc_config_set(struct roc_nix *roc_nix, struct roc_nix_fc_cfg *fc_cfg) { - if (roc_nix_is_vf_or_sdp(roc_nix) && !roc_nix_is_lbk(roc_nix)) + if (!roc_nix_is_pf(roc_nix) && !roc_nix_is_lbk(roc_nix) && + !roc_nix_is_sdp(roc_nix)) return 0; if (fc_cfg->type == ROC_NIX_FC_CQ_CFG) diff --git a/drivers/net/cnxk/cnxk_ethdev.c b/drivers/net/cnxk/cnxk_ethdev.c index 1fa4131907..bd31a9af51 100644 --- a/drivers/net/cnxk/cnxk_ethdev.c +++ b/drivers/net/cnxk/cnxk_ethdev.c @@ -310,6 +310,9 @@ nix_init_flow_ctrl_config(struct rte_eth_dev *eth_dev) struct cnxk_fc_cfg *fc = &dev->fc_cfg; int rc; + if (roc_nix_is_sdp(&dev->nix)) + return 0; + /* To avoid Link credit deadlock on Ax, disable Tx FC if it's enabled */ if (roc_model_is_cn96_ax() && dev->npc.switch_header_type != ROC_PRIV_FLAGS_HIGIG) -- 2.20.1