From caa343e9a4a171db045c8e734d68cb10ad0dd65c Mon Sep 17 00:00:00 2001 From: Michael Chan Date: Wed, 26 Nov 2025 13:56:42 -0800 Subject: [PATCH] bnxt_en: Enhance TX pri counters The priority packet and byte counters in ethtool -S are returned by the driver based on the pri2cos mapping. The assumption is that each priority is mapped to one and only one hardware CoS queue. In a special RoCE configuration, the FW uses combined CoS queue 0 and CoS queue 1 for the priority mapped to CoS queue 0. In this special case, we need to add the CoS queue 0 and CoS queue 1 counters for the priority packet and byte counters. Reviewed-by: Andy Gospodarek Signed-off-by: Michael Chan Link: https://patch.msgid.link/20251126215648.1885936-2-michael.chan@broadcom.com Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 5 +++++ drivers/net/ethernet/broadcom/bnxt/bnxt.h | 1 + drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c | 14 ++++++++++---- 3 files changed, 16 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 8f95f5f29e00..c289d1f35e16 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -8506,6 +8506,11 @@ static int bnxt_hwrm_func_qcfg(struct bnxt *bp) if (flags & FUNC_QCFG_RESP_FLAGS_ENABLE_RDMA_SRIOV) bp->fw_cap |= BNXT_FW_CAP_ENABLE_RDMA_SRIOV; + if (resp->roce_bidi_opt_mode & + FUNC_QCFG_RESP_ROCE_BIDI_OPT_MODE_DEDICATED) + bp->cos0_cos1_shared = 1; + else + bp->cos0_cos1_shared = 0; switch (resp->port_partition_type) { case FUNC_QCFG_RESP_PORT_PARTITION_TYPE_NPAR1_0: diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h index 3613a172483a..aedb059f4ce5 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h @@ -2424,6 +2424,7 @@ struct bnxt { u8 tc_to_qidx[BNXT_MAX_QUEUE]; u8 q_ids[BNXT_MAX_QUEUE]; u8 max_q; + u8 cos0_cos1_shared; u8 num_tc; u16 max_pfcwd_tmo_ms; diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c index 41686a6f84b5..baac639f9c94 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c @@ -688,16 +688,22 @@ skip_ring_stats: buf[j] = *(rx_port_stats_ext + n); } for (i = 0; i < 8; i++, j++) { - long n = bnxt_tx_bytes_pri_arr[i].base_off + - bp->pri2cos_idx[i]; + u8 cos_idx = bp->pri2cos_idx[i]; + long n; + n = bnxt_tx_bytes_pri_arr[i].base_off + cos_idx; buf[j] = *(tx_port_stats_ext + n); + if (bp->cos0_cos1_shared && !cos_idx) + buf[j] += *(tx_port_stats_ext + n + 1); } for (i = 0; i < 8; i++, j++) { - long n = bnxt_tx_pkts_pri_arr[i].base_off + - bp->pri2cos_idx[i]; + u8 cos_idx = bp->pri2cos_idx[i]; + long n; + n = bnxt_tx_pkts_pri_arr[i].base_off + cos_idx; buf[j] = *(tx_port_stats_ext + n); + if (bp->cos0_cos1_shared && !cos_idx) + buf[j] += *(tx_port_stats_ext + n + 1); } } }