From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 80644A00C4; Tue, 19 Apr 2022 00:24:57 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id BC1A2427EE; Tue, 19 Apr 2022 00:24:47 +0200 (CEST) Received: from stargate.chelsio.com (stargate.chelsio.com [12.32.117.8]) by mails.dpdk.org (Postfix) with ESMTP id 47B514161A for ; Tue, 19 Apr 2022 00:24:46 +0200 (CEST) Received: from localhost (arunbr.asicdesigners.com [10.193.177.142] (may be forged)) by stargate.chelsio.com (8.14.7/8.14.7) with ESMTP id 23IMOi3b004435 for ; Mon, 18 Apr 2022 15:24:44 -0700 From: Rahul Lakkireddy To: dev@dpdk.org Subject: [PATCH 4/5] net/cxgbe: track packets dropped by TP due to congestion Date: Tue, 19 Apr 2022 03:54:21 +0530 Message-Id: <323a4fe735f784ec49c6c93b18a2b21cde1d05c3.1650297776.git.rahul.lakkireddy@chelsio.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Rx packets can get dropped at TP due to congestion and this info will not get propagated to MPS. Track these Rx dropped packets in imissed counter. Also add xstats for these counters. Signed-off-by: Rahul Lakkireddy --- drivers/net/cxgbe/base/common.h | 2 ++ drivers/net/cxgbe/base/t4_hw.c | 14 ++++++++++++-- drivers/net/cxgbe/base/t4_regs.h | 4 ++++ drivers/net/cxgbe/cxgbe_ethdev.c | 11 +++++++++++ 4 files changed, 29 insertions(+), 2 deletions(-) diff --git a/drivers/net/cxgbe/base/common.h b/drivers/net/cxgbe/base/common.h index 980d78e4a4..4482ddbf56 100644 --- a/drivers/net/cxgbe/base/common.h +++ b/drivers/net/cxgbe/base/common.h @@ -101,6 +101,8 @@ struct port_stats { u64 rx_trunc1; /* buffer-group 1 truncated packets */ u64 rx_trunc2; /* buffer-group 2 truncated packets */ u64 rx_trunc3; /* buffer-group 3 truncated packets */ + + u64 rx_tp_tnl_cong_drops[NCHAN]; /* TP frame drops due to congestion */ }; struct sge_params { diff --git a/drivers/net/cxgbe/base/t4_hw.c b/drivers/net/cxgbe/base/t4_hw.c index 84c4316e68..384080e6d3 100644 --- a/drivers/net/cxgbe/base/t4_hw.c +++ b/drivers/net/cxgbe/base/t4_hw.c @@ -3040,8 +3040,10 @@ unsigned int t4_get_tp_ch_map(struct adapter *adapter, unsigned int pidx) */ void t4_get_port_stats(struct adapter *adap, int idx, struct port_stats *p) { - u32 bgmap = t4_get_mps_bg_map(adap, idx); u32 stat_ctl = t4_read_reg(adap, A_MPS_STAT_CTL); + u32 bgmap = t4_get_mps_bg_map(adap, idx); + u32 val[NCHAN] = { 0 }; + u8 i; #define GET_STAT(name) \ t4_read_reg64(adap, \ @@ -3129,6 +3131,11 @@ void t4_get_port_stats(struct adapter *adap, int idx, struct port_stats *p) p->rx_trunc2 = (bgmap & 4) ? GET_STAT_COM(RX_BG_2_MAC_TRUNC_FRAME) : 0; p->rx_trunc3 = (bgmap & 8) ? GET_STAT_COM(RX_BG_3_MAC_TRUNC_FRAME) : 0; + t4_read_indirect(adap, A_TP_MIB_INDEX, A_TP_MIB_DATA, &val[idx], 1, + A_TP_MIB_TNL_CNG_DROP_0 + idx); + + for (i = 0; i < NCHAN; i++) + p->rx_tp_tnl_cong_drops[i] = val[i]; #undef GET_STAT #undef GET_STAT_COM } @@ -3163,9 +3170,10 @@ void t4_get_port_stats_offset(struct adapter *adap, int idx, */ void t4_clr_port_stats(struct adapter *adap, int idx) { - unsigned int i; u32 bgmap = t4_get_mps_bg_map(adap, idx); u32 port_base_addr; + unsigned int i; + u32 val = 0; if (is_t4(adap->params.chip)) port_base_addr = PORT_BASE(idx); @@ -3187,6 +3195,8 @@ void t4_clr_port_stats(struct adapter *adap, int idx) A_MPS_STAT_RX_BG_0_MAC_TRUNC_FRAME_L + i * 8, 0); } + t4_write_indirect(adap, A_TP_MIB_INDEX, A_TP_MIB_DATA, + &val, 1, A_TP_MIB_TNL_CNG_DROP_0 + idx); } /** diff --git a/drivers/net/cxgbe/base/t4_regs.h b/drivers/net/cxgbe/base/t4_regs.h index 8a14d09a15..ff60dc1bb3 100644 --- a/drivers/net/cxgbe/base/t4_regs.h +++ b/drivers/net/cxgbe/base/t4_regs.h @@ -525,6 +525,8 @@ #define A_TP_PIO_ADDR 0x7e40 #define A_TP_PIO_DATA 0x7e44 +#define A_TP_MIB_INDEX 0x7e50 +#define A_TP_MIB_DATA 0x7e54 #define A_TP_RSS_SECRET_KEY0 0x40 @@ -587,6 +589,8 @@ #define S_RM_OVLAN 9 #define V_RM_OVLAN(x) ((x) << S_RM_OVLAN) +#define A_TP_MIB_TNL_CNG_DROP_0 0x18 + /* registers for module MA */ #define A_MA_EDRAM0_BAR 0x77c0 diff --git a/drivers/net/cxgbe/cxgbe_ethdev.c b/drivers/net/cxgbe/cxgbe_ethdev.c index e7ea76180f..cf9a2fdc19 100644 --- a/drivers/net/cxgbe/cxgbe_ethdev.c +++ b/drivers/net/cxgbe/cxgbe_ethdev.c @@ -709,6 +709,9 @@ static int cxgbe_dev_stats_get(struct rte_eth_dev *eth_dev, ps.rx_ovflow2 + ps.rx_ovflow3 + ps.rx_trunc0 + ps.rx_trunc1 + ps.rx_trunc2 + ps.rx_trunc3; + for (i = 0; i < NCHAN; i++) + eth_stats->imissed += ps.rx_tp_tnl_cong_drops[i]; + eth_stats->ierrors = ps.rx_symbol_err + ps.rx_fcs_err + ps.rx_jabber + ps.rx_too_long + ps.rx_runt + ps.rx_len_err; @@ -851,6 +854,14 @@ static const struct cxgbe_dev_xstats_name_off cxgbe_dev_port_stats_strings[] = { {"rx_bg1_truncated_packets", offsetof(struct port_stats, rx_trunc1)}, {"rx_bg2_truncated_packets", offsetof(struct port_stats, rx_trunc2)}, {"rx_bg3_truncated_packets", offsetof(struct port_stats, rx_trunc3)}, + {"rx_tp_tnl_cong_drops0", + offsetof(struct port_stats, rx_tp_tnl_cong_drops[0])}, + {"rx_tp_tnl_cong_drops1", + offsetof(struct port_stats, rx_tp_tnl_cong_drops[1])}, + {"rx_tp_tnl_cong_drops2", + offsetof(struct port_stats, rx_tp_tnl_cong_drops[2])}, + {"rx_tp_tnl_cong_drops3", + offsetof(struct port_stats, rx_tp_tnl_cong_drops[3])}, }; static const struct cxgbe_dev_xstats_name_off -- 2.27.0